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PowerXplorer PX5
User Manual
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Dranetz PowerXplorer PX5 User Manual

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Page 1
PowerXplorer
USER’S GUIDE
TM
PX5
DRANETZ - BMI 1000 New Durham Road Edison, New Jersey 08818-4019
www.GlobalTestSupply.com
Page 2
WARNING
Death, serious injury, or fire hazard could result from improper connection of this instrument. Read and understand this manual before connecting this instrument. Follow all installation and operating instructio ns while using this instrument.
Connection of this instrument must be performed in compliance with the National Electrical Code (ANSI/ NFPA 70-2005) of USA and any additional safety requirements applicable to your installation.
Installation, operation, and maintenance of this instrument must be performed by qualified personnel only. The National Electrical Code defines a qualified person as “one who has the skills and knowledge related to the construction and operation of the electrical equipment and installations, and who has received safety training on the hazards involved.”
Qualified personnel who work on or near exposed energized electrical conductors must follow applicable safety related work practices and procedures including appropriate personal protective equipment in compliance with the Standard for Elec tr ical Safety Require ments f or Employee Workplaces ( ANSI/ NFPA 70E-2004) of USA and any additional workplace safety requirements applicable to your installation.
Published by Dranetz-BMI 1000 New Durham Road Edison, NJ 08818-4019 USA Telephone: 1-800-372-6832 or 732-287-3680 Fax: 732-248-1834 Web site: www.dranetz-bmi.com
Copyright© 2003, 2004, 2005 Dranetz-BMI All rights reserved.
No part of this book may be reproduced, stored in a retrieval system, or transcribed in any form or by any means—electronic, mechanical, photocopying, recording, or otherwise—without prior written permission from the publisher, Dranetz-BMI, Edison, NJ 08818-4019.
Printed in the United States of America.
P/N UG-PX5 Rev. G
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ADVERTENCIA
Una conexión incorrecta de este instrumento puede producir la muerte, lesiones graves y riesgo de incendio. Lea y entienda este manual antes de conectar. Observe todas las instrucciones de instalación y operación durante el uso de este instrumento.
La conexión de este instrumento debe ser hecha de acuerdo con las normas del Código Eléctrico Nacional (ANSI/NFPA 70-2005) de EE. UU., además de cualquier otra norma de seguridad correspondiente a su establecimiento.
La instalación, operación y mantenimiento de este instrumento debe ser realizada por personal calificado solamente. El Código Eléct rico Nac ional de fine a una persona ca lifi cada como " una que est é famili ariz ada con la construcción y operación del equipo y con los riesgos involucrados."
AVERTISSEMENT
Si l'instrument est mal connecté, la mort, des blessures graves, ou un danger d'incendie peuvent s'en suivre. Lisez attentivement ce manuel avant de connecter l'instrument. Lorsque vous utilisez l'instrument, suivez toutes les instructions d'installation et de service.
Cet instrument doit être connecté conformément au National Electrical Code (ANSI/NFPA 70-2005) des Etats-Unis et à toutes les exigences de sécurité applicables à votre installation.
Cet instrument doit être installé, utilisé et entretenu uniquement par un personnel qualifié. Selon le National Electrical Code, une personne est qualifiée si "elle connaît bien la construction et l'utilisation de l'équipement, ainsi que les dangers que cela implique".
WARNUNG
Der falsche Anschluß die ses Gerätes kann Tod, schwere Verl et zungen oder Feuer verursa chen. Bevor Sie dieses Instrument anschließen, müssen Sie die Anleitung lesen und verstanden haben. Bei der Verwendung dieses Instruments müssen alle Installation- und Betriebsanweisungen beachtet werden.
Der Anschluß dieses Instruments muß in Übereinstimmung mit den nationalen Bestimmungen für Elektrizität (ANSI/NFPA 70-2005) der Vereinigten Staaten, sowie allen weiteren, in Ihrem Fall anwendbaren Sicherheitsbestimmungen, vorgenommen werden.
Installation, Betrieb und Wartung dieses Instruments dürfen nur von Fachpersonal durchgeführt werden. In dem nationalen Bestimmungen für Elektrizität wird ein Fachmann als eine Person bezeichnet, welche "mit der Bauweise und dem Betrieb des Gerätes sowie den dazugehörigen Gefahren vertraut ist."
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Safety Summary
Definitions
Symbols
Definiciones
WARNING statements inform the user that certain conditions or practices could result in loss of life or physical harm.
CAUTION statements identify conditions or practices that could harm the Power Xplorer, its data, other equipment, or property.
NOTE statements call attention to specific information.
The following International Electrotechnical Commission (IEC) symbols are marked on the top and rear pa nel in the immediate vicinit y of the referenced terminal or device:
!
Las ADVERTENCIAS informan al usuario de ciertas condiciones o prácticas que podrían producir lesiones mortales o daño físico.
Las PRECAUCIONES identifican condiciones o prácticas que podrían dañar la Power Xplorer, sus datos, otros equipos o propiedad.
Caution, refer to accompanying documents (this manual).
Direct current (DC) operation of the terminal or device.
Power Switch
Símbolos
Las NOTAS llaman la atención hacia la información específica.
Los siguientes símbolos de la Comisión Internacional Electrotécnica (IEC) aparecen marcados en el panel superior y el posterior inmediatos al terminal o dispositivo en referencia:
!
Precaución, consulte los documentos adjuntos (este manual).
Operación de corriente continua (CC) del terminal o dispositivo.
Interruptor de encendido
Continued on next page
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Safety Summary,
Continued
Définitions
Symboles
Definitionen
Les messages d’AVERTISSEMENT préviennent l’utilisateur que certaines conditions ou pratiques pourraient entraîner la mort ou des lésions corporelles.
Les messages de MISE EN GARDE signalent des condi ti ons ou pratiques susceptibl es d’endommager “PowerXplorer ”, se s donn ées, d’autres équipements ou bien s maté riels.
Les messages NOTA attirent l’attention sur certains renseignements spécifiques.
Les symboles suivants de la Commission éle ctrotechniq ue intern ationale (CEI ) figurent sur le panneau arrière supérieur situé à proximité du terminal ou de l’unité cité:
!
WARNUNGEN informieren den Benutzer darüber, daß bestimmte Bedingungen oder Vorgehensweisen körperliche oder tödliche Verletzungen zur Folge haben können.
VORSICHTSHINWEISE kennzeichnen Bedingungen oder Vorgehensweisen, die zu einer Beschädigung von PowerXplorer, seiner Daten oder anderer Geräte bzw. von Eigentum führen können.
Mise en garde, consultez les documents d’accompagnement (ce manual).
Fonctionnement du terminal ou de l’unité en courant continu (CC).
Interrupteur de tension
Symbole
HINWEISE machen auf bestimmte Informationen aufmerksam. Die folgenden Symbole der Internationalen Elektrotechnischen Kommission (International Electrotechnical Commission; IEC) befinden sich auf der Abdeck- und Seitenplatte unmittelbar am betreffenden Terminal oder Gerät.
!
Vorsichtshinweis, siehe Begleitdokumente (dieses Handbuch).
Gleichstrombetrieb im Terminal oder Gerät.
Netzschalter
Continued on next page
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Safety Summary,
Continued
Safety precautions
The following safety precautions must be followed whenever any type of voltage or current connection is being made to the PX5.
• Wear proper Personal Protective Equipment, including safety glasses and insulated gloves when making connections to power circuits.
• Hands, shoes and floor must be dry when making any connection to a power line.
• Before each use, inspect all cables for breaks or cracks in the insulation. Replace immediately if defective.
• Set the PX5 power switch to Off.
• Before connecting to electric circuits to be monitored, open their related circuit breakers or disconnects. DO NOT install any connection of the PX5 to live power lines.
• Connections must be made to the PX5 first, then connect to the circuit to be monitored.
These safety precautions are repeated where appropriate throughout this manual.
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Statements and Notices
Statement of warranty
Statement of reliability
Notice regarding FCC compliance
All products of Dranetz-BMI are warranted to the original purchaser against defective material and workmanship for a period of one year from the date of delivery. Dranetz­BMI will repair or replace , at its opti on, all defec tive equ ipment that is returne d, freig ht prepaid, during th e warrant y period. There wil l be no char ge for repair provided t here is no evidence that the equi pment ha s been mishand led or ab used. Thi s warr anty s hall not apply to any defects resulting from improper or inadequate maintenance, buyer­supplied hardware/software interfacing, unauthorized modification or misuse of the equipment, operation outside of environmental specifications, or improper site preparation or maintenance.
The information in this manual has bee n reviewed and is believed to b e entirely reliable, however, no responsibility is assumed for any inaccuracies. All material is for informational purposes only and is subject to change without prior notice.
This device has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable prote cti on against harmful interference whe n t he equipment is oper at ed in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential are a is likel y to cause harmfu l inter feren ce in which cas e the user will be required to correct the interference at his/her own expense.
Notice regarding proprietary rights
This publication contains information proprietary to Dranetz-BMI. By accepting and using this manual, you agree that the information contained herein will be used solely for the purpose of operating equipment of Dranetz-BMI.
Continued on next page
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Statements and Notices,
Continued
Copyright
Trademarks
This publication is protected under the Copyright laws of the United States, Title 17 et seq. No part of this p ublica tion may be rep roduced , tr ansmit ted, t ranscr ibed, s tored in a retrieval system, or translated i nt o a ny language or compute r la nguage, in any form, by any means, electronic, mechanical, magnetic, optical, chemical, manual, or otherwise, without the prior written consent of Dranetz-BMI, 1000 New Durham Road, Edison, New Jersey 08818.
Copyright © 2003, 2004, 2005 Dranetz-BMI All Rights Reserved. Printed in the United States of America.
PowerXplorer, Scope Mode, NodeLink and DranView are registered trademarks of Dranetz-BMI.
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Table of Contents
Safety Summary .................................................................................................................... iv
Statements and Notices.......................................................................................................... vii
CHAPTER 1 - Getting Started
Overview ............................................................................................................................... 1-1
Unpacking the PX5............................................................................ .................................... 1-3
Standard Accessories............................................................................................................. 1-4
PX5 Controls, Indicators, and Connectors............................................................................ 1-5
Top and Side Views........................................................................................................ 1-6
Front View ...................................................................................................................... 1-7
Bottom View........................................................................................ ........................... 1-8
Rear View ....................................................................................................................... 1-9
Upgrading Firmware from a Data Card................................................................................. 1-10
PX5 Features......................................... ...................................................... ......... ......... ......... 1-12
Basic Operation ..................................................................................................................... 1-14
Power-on Sequence......................................................................................................... 1-15
Home Screen Icons ......................................................................................................... 1-15
CHAPTER 2 - Voltage Measurement Cable and Current Probe Connections
Overview ............................................................................................................................... 2-1
Connecting Voltage Measurement Cables ............................................................................ 2-4
Connecting Current Probes.................................................................................................... 2-9
CHAPTER 3 - View Real Time Data
Overview ............................................................................................................................... 3-1
Section A -Scope Mode ............................................................................................................... 3-2
Overview ............................................................................................................................... 3-2
Turning Channels On/Off...................................................................................................... 3-3
Checking Input Range........................................................................................................... 3-4
Section B -Meter Mode................................................................................................................ 3-5
Overview ............................................................................................................................... 3-5
Standard Meter Tab............................................................................................................... 3-6
Distortion Meter Tab............................................................................................................. 3-8
User Specified Frequency Meter Tab.................................................................................... 3-10
Unbalance Meter Tab.............................................................................................................3-11
Advanced Power Meter Tab.................................................................................................. 3-12
Section C -Harmonics.................................................................................................................. 3-15
Overview ............................................................................................................................... 3-15
Harmonic Graph.................................................................................................................... 3-16
Harmonic Detail .................................................................................................................... 3-17
Harmonic Options.................................................................................................................. 3-18
Harmonic List........................................................................................................................ 3-19
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Table of Conten ts,
Section D -Voltage and Current Phasor ....................................................................................... 3-19
Overview ............................................................................................................................... 3-19
Phasor Screen ........................................................................................................................ 3-20
Phasor Rotation...................................................................................................................... 3-21
Phasor Parameter/Channel Selection..................................................................................... 3-23
CHAPTER 4 - Instrument Settings
Overview ............................................................................................................................... 4-1
Access Instrument Settings Menu......................................................................................... 4-2
Time and Date Settings..........................................................................................................4-3
Select Language........................................................................ ......... .................................... 4-5
Set Display Preferences......................................................................................................... 4-6
Touch Screen Calibration...................................................................................................... 4-7
Turn Threshold Beeper On/Off............................................................................................. 4-9
Communications.................................................................................................................... 4-10
Memory Card......................................................................................................................... 4-12
Reset to Factory Configurations............................................................................................ 4-14
CHAPTER 5 - Start Menu
Continued
Overview ............................................................................................................................... 5-1
Section A -Automatic Setup......................................................................................................... 5-3
Section B -Wizard Setup.................................................................................................. 5-6
Overview ............................................................................................................................... 5-6
Current Probe Selection.........................................................................................................5-8
Scale Factor Setup................................................................................................................. 5-10
Circuit Type Selection........................................................................................................... 5-12
Nominal Values..................................................................................................................... 5-14
Mode of Operation................................................................................................................. 5-17
Monitoring Mode................................................................................................................... 5-18
Advanced Options ................................................................................................................. 5-19
Site Name/Memory Card....................................................................................................... 5-20
Section C -Monitor Same Circuit.................................................................................................5-24
Overview ............................................................................................................................... 5-24
Turning Monitoring On/Off................................................................................................... 5-25
Monitoring at a Specified Time and Date ............................................................................. 5-28
Modify Trigger Parameters and Intervals.............................................................................. 5-33
Section D -Load Setup Template from Card................................................................................ 5-34
Section E -Load Data from Card..................................................................................................5-35
Overview ............................................................................................................................... 5-35
Loading Data from Card........................................................................................................ 5-35
Card Error Messages ............................................................................................................. 5-36
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Table of Conten ts,
CHAPTER 6 - Advanced Setup Options
Overview ............................................................................................................................... 6-1
Advanced Options Menu....................................................................................................... 6-2
Transient Limit....................................................... ......... ......... ............................................. 6-3
High Frequency Transients............................................................................................. 6-4
Recording Transients ...................................................................................................... 6-5
RMS Variation Limit............................................................................................................. 6-9
Waveform Capture ................................................................................................................ 6-14
Characterizer Options............................................................................................................ 6-15
Journal Limit.......................................................................................................................... 6-16
Journal Interval for Timed Readings..................................................................................... 6-21
EN50160 Power Quality (for strict EN50160 monitoring only)........................................... 6-23
CHAPTER 7 - View Event Data
Overview ............................................................................................................................... 7-1
Section A -Events......................................................................................................................... 7-4
Overview ............................................................................................................................... 7-4
Event Data Display................................................................................................................ 7-5
Event Activity Graph............................................................................................................. 7-6
Event List............................................................................................................................... 7-7
Event Detail........................................................................................................................... 7-9
Event Options........................................................................................................................ 7-14
Section B -Trend.......................................................................................................................... 7-17
Overview ............................................................................................................................... 7-17
Trend Display........................................................................................................................ 7-18
Trend Setup............................................................................................................................ 7-19
Continued
CHAPTER 8 - Reports
Overview ............................................................................................................................... 8-1
Section A -EN50160.................................................................................................................... 8-2
Overview ............................................................................................................................... 8-2
EN50160 Measurement Parameters...................................................................................... 8-3
EN50160 Compliance Limits................................................................................................ 8-5
Compliance Statistical Bar Chart .......................................................................................... 8-8
Compliance History............................................................................................................... 8-11
Event Satistics........................................................................................................................ 8-13
Min/Max Table for Power Frequency and RMS Voltage..................................................... 8-15
Section B -Status Report in Annunciator Panel........................................................................... 8-16
Overview ............................................................................................................................... 8-16
Panel Setup Options............................................................................................................... 8-17
Panel Operation ..................................................................................................................... 8-19
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Table of Conten ts,
CHAPTER 9 - Downloading Events
Overview ............................................................................................................................... 9-1
External Communication Interface........................................................................................ 9-2
Downloading Events via NodeLink ...................................................................................... 9-10
Viewing Events via DranView.............................................................................................. 9-11
DranView with HASP........................................................................................................... 9-12
APPENDIX A - Technical Specifications
Optional Accessories
Overview ............................................................................................................................... A-1
Hardware Accessories List & Descriptions........................................................................... A-2
Software Accessories List ..................................................................................................... A-8
APPENDIX B - Technical Specifications
Overview ............................................................................................................................... B-1
General................................................................................................................................... B-2
Interfaces ............................................................................................................................... B-3
Measured Parameters............................................................................................................. B-4
Computed Parameters............................................................................................................ B-6
Parameter Settings in Monitoring Mode ............................................................................... B-10
TR2500 Current Probe........................................................................................................... B-12
TR2510 Current Probe........................................................................................................... B-13
Continued
APPENDIX C - Battery Specifications and Replacement Procedure
Overview ............................................................................................................................... C-1
Battery Specifications............................................................................................................ C-2
Battery Pack Safety Precautions............................................................................................ C-3
Battery Pack Replacement..................................................................................................... C-4
APPENDIX D - User Replaceable Parts List APPENDIX E - Common Circuit Connections
Overview ............................................................................................................................... E-1
Verifying Voltage and Current Connections......................................................................... E-5
Single Phase........................................................................................................................... E-7
Split Phase............................................................................................................................. E-8
3 Phase, Four Wire Wye........................................................................................................ E-9
3 Phase (Floating or Grounded) Delta................................................................................... E-10
3 Phase 2-Watt Delta............................................................................................................. E-11
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Table of Conten ts,
Generic Circuit .............................................. ......... ......................................................... ...... E-12
2 1/2 Element Without Voltage Channel B........................................................................... E-13
2 1/2 Element Without Voltage Channel C....................................... .................................... E-14
Connecting to a Potential Transformer (PT)......................................................................... E-15
Connecting to a Current Transformer (CT)........................................................................... E-17
Connecting to an Isolated Current Transformer (ISO).......................................................... E-18
Continued
APPENDIX F -
APPENDIX G -
Event Classification
PX5 Menu Structure
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Dranetz-BMI PowerXplorerTM PX5
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Overview
PowerXplorer description
CHAPTER 1
Getting Started
TM
The Dranetz-BMI PowerXplorer quality meter/monitor. This cutting-edge power quality instrument is designed with a color liquid crystal display (LCD) 1/4 VGA, using touch screen technology. It can monitor, record and display data on four voltage channels and four current channels simultaneously.
PX5 is designed to meet bo th the I EEE 1 159 and I EC 61000-4- 30 Class A s tandards for accuracy and measurement requi re me nts . It can do PQ-opt imized acquisition of power quality related disturbances and events. It is designed with a statistical package called Quality of Supply ( QOS), with monitor ing an d s etup pr otocol s set to de termi ne volt age measurement compliance required for EN50160 monitoring. European standard EN50160 requires that measurement parameters must be within a specified percentage for 95% of the time.
PX5 is a portable, hand-held, eight-channel power
PX5 Firmware
PowerXplorer PX5 is available in two models:
• Model PX5-XFAST is equipped with the high speed sampling analog board for microsecond transient de tection digi tization and analysis. The PX5-XFAST performs measurements for 50/60 Hz power frequency systems.
• Model PX5-400 performs measurements for 400 Hz power frequency systems. The PX5-400 will also monit or at 50/ 60 Hz. The user n eeds to s et the default frequency to either 400 Hz, 60 Hz or 50 Hz, depending on the application. When ope ra ti ng at 400 Hz, rms calculations are made on a c ycle-by- cycle bas is with 1 cy cle step; whereas at 50/60 Hz mode, it steps at 1/2 Hz. Also, the PX5-400 does not calculate the IEEE 1459 power parameters as well as flicker, which are not defined at 400 Hz.
The firmware for the PX5 is contained on intern al FLASH memory. It has an operating system capable of performing multiple applications. When an updated version of the firmware is released, the user can upgrade the internal program by putting the latest PX5 firmware program card in the appropriate slot of the mainframe. See page 1-10
for instructions on how to upgrade PX5 firmware from a data card.
The PX5 firmware can monitor power quality phenomena for troubleshooting and/or compliance purposes. It can record inrush conditions, carry out long-term statistical studies to establish performance baselines, and perform field-based equipment testing and evaluation for commissioning and maintenance. The firmware integrates an intuitive instrument setup procedure to ensure the capture of all relevant data for additional post process analysis, report writing, and data archiving using other compatible Dranetz-BMI software applications such as NodeLink
®
and DranView®.
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Overview, continued
This manual
In this chapter
This manual contains instructions for operating both PX5 models - PX5-XFAST and PX5-400.
The following topics are covered in this chapter.
Topic See Page
Unpacking the PX5 1-3 Standard Accessories 1-4 PX5 Controls, Indicators, and Connectors 1-5 Upgrading Firmware from a Data Card 1-10 PX5 Features 1-12 Basic Operation 1-14
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Unpacking the PX5
CH 1/ Getting Started
Introduction
Unpacking
Shipping damage inspection
For maximum protection against possible shipping damage, PX5 has been sealed in a two-piece, plastic suspension pack, enclosed within a durable shipping carton. After opening the carton, inspect the contents for possible shipping damage and check the carton inventory.
Unpack the PX5 from the carton as follows:
Step Action
1 Remove any remaining literature inside the top of the carton. 2 Carefully remove the PX5 from its shipping carton. 3 Remove all accessories inside the carton. Check that all of the standard
accessories (see page 1-4) are included.
Visually inspect the PX5 for possible shipping damage. If any damage exists, first notify and file an insurance claim with your carrier or und er wri ter or bot h. Then notify Dranetz-BMI Customer Service Department of your intentions to return the unit. DO NOT return the PX5 without prior instructions from Dranetz-BMI Customer Service Department. Dranetz-BMI Customer Service Department can be reached at (732) 287­3680 or 1-800-372-6832.
Repacking for return shipment
Return notice
If the unit must be return ed to Dranetz -BMI for servi ce or repai r , wrap the unit sec urely in heavy packaging mater ial and place in a well padded box or crate to p revent damag e. Do not return the PX5 in an unpacked box. Dranetz-BMI will not be responsible for damage incurred during transit due to inadequate packing on your part.
Notify Dranetz-BMI Customer Service of your intention of returning the unit. Do not return the unit without prior instructions from Dranetz-BMI. Dranetz-BMI Customer Service Department can be reached at (732) 287-3680 or 1-800-372-6832.
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St andard Accesso ries
Standard Accessories
Standard accessories
Optional accessories
Batteries
The following table lists the PX5's standard accessories.
Description Part Number
Cable Set 116042-G3 Easel 116038-G1 AC Adapter 117029-G1 *US Power Cord USSTDCORD (900744) *European Power Cord EUROSTDCORD (115369-G2) *United Kingdom Power Cord UKSTDCORD (115368-G2) *Australian Power Cord AUSTDCORD (901347) Notice: Charge Battery 899117 PowerXplorer User’s Guide UG-PX5 *User specified, one standard only.
Refer to Appendix A for the list of hardware and software optional accessories available for use with PX5.
Refer to Appendix C for the description and replacement of the batteries contained in PX5.
Replaceable parts
Calibration
Refer to Appendix D for the user replaceable parts.
The recommended calibration interval for this unit is once every 12 months.
We recommend that you return the unit to the factory for calibration. If you decide to do so, first contact the Dranetz-BMI Customer Service Department to obtain an Authoriz ation Number.
Telephone: (732) 287-3680 or 1-800-372-6832 FAX: (732) 248-9240
Fill out the Repair /Servi ce Ord er for m enclos ed in the shippi ng car ton and ship i t alon g with the unit to the Dranetz-BMI Repair Department. (If this form is missing, ask the Dranetz-BMI Customer Service Department for a replacement.)
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PX5 Controls, Indicators, and Connectors
CH 1/ Getting Started
Dimensions
PX5 is a self-contained, portable instrument weighing less than 5 pounds and measuring 8" (20.3 c m) d eep by 12" ( 30.5 cm) wide by 2.5" ( 6.4 cm) high. This se ction identifies and descri bes the cont rols , indic ators , and conne ctors on al l sid es of th e PX5, shown with rubber boot installed.
Top View
Front View
Rear View
Bottom View
SLOT 1
SLOT 2
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PX5 Controls, Indicators, and Connectors, continued
Top and Side views
The top (circuit connection) view features the input voltage and current connectors. The left side contains the optical interface port. The right side contains the AC adapter input connector. Both sides have rings for attaching the supplied carrying strap. See below for descriptions of the top and side connectors.
1 2 3 5 6 7 8 9 10 11 124
13 14
Parts table
1-6
Part Function
1 CH A, + Differential Voltage Input Connector; color red. 2 CH A, - Differential Voltage Input Connector; color white. 3 CH A, PROBE, Current Input Connector. 4 CH B, + Differential Voltage Input Connector; color yellow. 5 CH B, - Differential Voltage Input Conn ector; color white. 6 CH B, PROBE, Current Input Connector. 7 CH C, + Differential Voltage Input Connector; color blue. 8 CH C, - Differential Voltage Input Conn ector; color white.
9 CH C, PROBE, Current Input Connector. 10 CH D, + Differential Voltage Input Connector; color grey. 11 CH D, - Differential Voltage Input Connector; colo r white. 12 CH D, PROBE, Current Input Connector. 13 Optical Serial Data Port 14 AC Adapter/Battery Charger Input Connector.
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CH 1/ Getting Started
Front view
The front view primari ly shows t he color touch sc reen LCD. See below for desc riptions of the PX5 front display.
21
Parts table
Part Function
1 Mainframe Protective Rubber Boot Enclosure
2 Liquid Crystal Display (LCD). Provides 3.75 x 4.75 inches display
consisting of 1/4 VGA size screen of text and graphic information. The color LCD is equipped with touch screen technology, operable using the finger and/or PDA stylus. Touch screen display permits menu selection, alphanumeric data entry, and has a compact fluorescent (CCFL) backlighting that is always on for low light level viewing.
The following are some basic care instructions for the LCD monitor
• Use and store the unit within the specified temperature and humidity range. The LCD screen may be adve rs el y affected by exposure to high temperature or humidity. Condensation or moisture produced by sudden temperature changes may also damage the LCD screen. Clean any moisture from surface immediately.
• Be careful when cleaning or removing stains on the LCD surface. Gently wipe the surface with a soft cloth or cotton pad. Isopropyl alcohol may be used, but make sure that all sol vent r es idue is removed.
• Do not appl y excessive force to the LCD surface. The LCD screen contains sensitive electronic components that may be damaged due to strong impact.
:
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PX5 Controls, Indicators, and Connectors, continued
Bottom vi ew
Parts table
The bottom view features two slots. Either slot can be used to hold the data card. NOTE: Use only one card slot ( one data ca rd) at a ti me. The addition al slot wil l be used for future communications options.
The bottom also features LED indicators and the On/Off power button. See below for descriptions of the slots, indicators, and button.
1
SLOT 1
SLOT 2
2 3 5 64
Part Function
1 Slot 1. Holds and connects data card to internal circuitry. Data card works in
either Slot 1 or Slot 2. Eject card by pushing data card release.
2 Slot 2. Holds and connects data card to internal circuitry. Data card works in
either Slot 1 or Slot 2. Eject card by pushing data card release. NOTE: This additional slot will be used for future options.
3 Battery Charge Indicator. LED will light steadily while battery is f as t ch arging
and blink when fully charged.
4 Status Indicator. LED will light steadily when abnormal condit ion is detected.
The unit is operating normally when light is off.
5 Power Indicator. LED will blink in a heart beat fas hion ( once per second) whe n
the unit is operating normally.
6 On/Off Power Button. Push for on, push for off.
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CH 1/ Getting Started
Rear view
The rear view shows the battery compartment and the easel studs to mount the unit to desired angular position for use on a flat surface or to hang from a panel.
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Upgrading Firmware from a Data Card
Upgrading Firmware from a Data Card
PX5 firmware web upgrade
Copy PX5 firmware program in data card
Users can upgrade the PX5 internal program by downloading the latest firmware update release from the web and installing it into the PX5 internal memory. Refer to the instructions below on how to upgrade PX5 firmware.
PX5 firmware upgrades can be downlo aded fr om the Dranetz-BMI web site. Log on to www.dranetz-bmi.com for the latest information on firmware update releases.
The procedure below s pec if ies how to download the latest PX5 firmware from the web and copy it into a data card.
Step Action
1 Locate the latest version of the firmware upgrade (in data file format
“hostcode.bin”) from the Dranetz-BMI website www.dranetz-bmi.com. Dranetz-BMI regularly posts the latest information and instructions regarding PX5 firmware upgrade releases.
2 Format the Compact Flash data card using the Memory Card options in
PX5. The card must be formatted before it can be written to. Refer to Chapter 5 Start Menu - Site Name/Memory Card on page 5-20 for instructions on how to format data card.
NOTE: All data and setups stored in card will be lost when you format the data card. Copy any files that you want to save to a computer first before formatting card.
3 Insert the Compact Flash data card into the appropriate slot in the
computer. If the computer does not accommodate a Compact Flash card in its native format, use a compatible PC card adapter to be able to read/ write data into the card.
4 Download and copy the latest version of the PX5 firmware upgrade
program (data file “hostcode.bin”) from the Dranetz-BMI website to the data card.
Refer to page 1-11 for instructions on how to install the data card containing the latest firmware upgrade to PX5.
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CH 1/ Getting Started
Install data card to PX5
The proce dure below specifies how to install the dat a card containing the latest firmware upgrade to PX5.
Step Action
1 Make sure that the unit is off. If not, press the PX5 On/Off power button
to turn unit off.
2 Remove the data card from its protective holder and check that the plug
end of card is clean and free of any obstruction.
NOTE: If plug end of card is dirty, clean with static-free, dry, low pressure air to remove any foreign material causing obstruction of the plug holes.
3 At the bottom of the unit, position the data card with the label facing up
and the plug end facing the top slot (Data Card Slot 1). Make sure that there are no other cards in the unit except for the data card.
4 Insert the card fully into the top slot (Data Card Slot 1) until resistance is
felt, then press firmly until the card engagement is felt.
NOTE: Do not force the card further into the slot if no card engagement is felt. Remove card and che ck if there i s fore ign object on or in the plug end of the card. Remove any obstruction. Reinsert data card and repeat card engagement. If card cannot be engaged, STOP all further action and call Dranetz-BMI Technical Support at 1-800-372-6832 for assistance.
5 Turn the unit on by pushing the on/off button. The loader should display
“Booting from program card ”. If not, call Dranet z-BMI Technical Support for assistance.
6 The instrument will prompt the user to verify whether or not to upgrade
the firmware. Press Yes and the upgrade procedure will commence. Do not turn the power of f nor remove the data card whil e firmware upg rade is in progress.
7 If no errors were detected, a window displaying “Installation Complete”
will pop up. Remove the data card from the unit.
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PX5 Features
PX5 Features
Touch screen function
Scope mode
Meter mode
Harmonics
All PX5 functions described below are operable using a color LCD touch screen technology. Users may use a finger and/or a PDA stylus to apply pressure to the LCD screen to result in touch screen recognition. The touch screen display is also workable with lineman gloves on. Touch screen buttons will appear in reverse-video to show visual feedback of contact along with audible feedback. In order to reduce power consumption, the backlight of the LCD screen times-out after a specified programmable time of no user activity. The backlight reactivates by touching any part of the scre en.
Scope mode functions as an oscilloscope, displaying real-time waveforms of voltage and current for up to eight channels simultaneously, with one second update rate. The colors of waveform dis play are user pr ogrammable. Scope mode al so provi des a textual display of rms values, division for axis values, and frequency.
Meter mode functions as a true rms voltmeter and a true rms clamp-on ammeter. Voltage and current measurements, along with other calculated and advanced power parameters, are displayed on the Meter mode screens in both textual and graphical format.
Harmonics display the amplitude and phase of each harmonic to the 63rd harmonic in both graphical and textual format.
Phasor diagram
Flicker
Event
1-12
The phasor screen displays a graph that indicates phase relations between voltage and current based upon the angles at the fundamental frequency, as determined by Fourier analysis. Phasor diagram displays voltage and current phasors for all channels. Functioning as a phase angle meter, the unit can display system imbalance conditions and provides such information in textual form also. The phase angle display can also verify if monitoring connections have been made correctly. Animated phasor demo rotations demonstrating resistive, inductive and capacitive loads can be displayed.
Flicker is a pheno menon due pri maril y to r apid s mall flu ctuat ions of the vol tage. Loads that exhibit continuous, rapid variations in the load current, particularly the reactive component, can cause voltage variations often referred to as flicker. Flicker is characterized by modulation at a frequency typically less than 25 Hz. Modulating signal magnitudes as low as 0.5% of the fund ament al for frequencies between 5-1 0 Hz can result in perceptible light flicker.
An event occurs when a programmed threshold limit is crossed. An event consists of the pre-trigger cycle(s), trigger cycle(s), and post-trigger cycle(s).
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CH 1/ Getting Started
Monitoring capacity
Automatic setup, Wizard setup, or Advanced setup
Trend
PX5 can monitor the following power configurations:
• Single Phase • 3 Phase 2-Watt Meter Delta
• Split Phas e • Generic
• 3 Phase Delta • 2 1/2 Element without V
• 3 Phase Wye • 2 1/2 Element without V
B C
While monitoring any of the above configurations, the PX5 can also be connected to monitor neutral to ground voltage and neutral or ground current.
Setup is a configuration of parameter thresholds that control the data reco rde d by PX5. Users may perform instrument setup in three ways: via Automatic Setup which utilizes auto-configured set ti ngs and al lows users to proceed direc tl y wit h dat a moni toring; via Wizard Set up which foll ows a step- by-step se quence where users go thr ough a seri es of circuit setup screens; or via Advanced Options setup which allows users to modify trigger parameters and intervals or tweak threshold settings.
Users can generate plots for all journalled data combined with min/max recordings of that parameter. Most journal parameters have multiple channels to plot.
Reports
Data Card
Users have two options on how to view QOS compliance reports.
EN50160 displays statistical reports on QOS compliance based on an analysis of the voltage as per requirements of the EN50160 standard. Compliance data is presented in bar charts , statistical tables, and graphs. Statistical d ata is calculated on the requ i red parameters specified in EN50160 over one week interval to produce a PASS/FAIL decision of QOS compliance.
Status presents a report summary for Standard PQ, EN50160, and Motor Quality parameters via the annuncia tor panel. The panel is color c oded such that gre en indicates the parameter is within li mits and/or no events have oc curred since the last time the panel was cleared. Red indica tes the paramete r is out of limits and/or events of th at type have occurred since last cleared. Unlike the EN50160 which reports on QOS compliance on a weekly basis, Status monitors compliance continuously. There is also the option to view a parameter in more detail i.e. display its data plot, threshold values, or edit parameter/channel settings.
PX5 supports the use of Compact Flash data cards with AT LEAST 32MB storage capacity. The user replaceable data card serves as primary storage for data. Data monitoring CANNOT proceed wit hout t he data card. PX5 is desi gned to accommodate the Compact Flash card in its native format, and does not require the use of a PC card adapter. However, a PC card adapter can be used to read the data into a laptop or other computer with a PC card slot.
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Basic Operation
Basic Operation
Introduction
Battery pack
The normal power source for the PX5 is its internal battery pack. The AC Adapter/ Battery Charger is used to charge the battery. Always charge the battery fully before use. PX5 will always operate on the charger and is designed to do so, regardless of the state of charge of the battery.
Sealed, rechargeable NiMH (Nickel Metal Hydride) cells.
Type:
Length of operation (2) hours with the backlight on. When the backlight is turned off, the unit can operate for more than three (3) hours. For information on how to turn backlight on or off, see Chapter 4 Instrument Settings - Set Display Preferences on page 4-6.
Charging Charger to the PX5. A screen warning will appear during operation when battery charge is low. A depleted battery pack can be recharged in six (6) hours whether the unit is on or off. The Battery Charge Indicator glows steadily while charging, and flashes when fully charged.
NOTE: The Battery Charge Indicator functions whenever the AC Adapter/Battery Charger is properly connected.
: The battery pack can be charged by connecting the AC Adapter/Battery
: PX5 can operate on a fully char ged batt ery pack for more t han tw o
AC power source
PX5 can be operated from a 50/60 Hz 120/230V AC power source with or without the battery pack installed.
Connect the AC Adapter output cable to the Input Connector on the right side of the PX5. Connect the AC Adapter power cord to an appropriate outlet.
Refer to Appendix C for the specifications and replacement of the batteries contained in PX5.
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CH 1/ Getting Started
Power on sequence
Follow these steps to turn on the PX5 and display the Home screen.
Step Action
1 Connect ac adapter/battery charger plug into the right side of PX5. 2 Plug the ac adapter into an ac power source. 3 Press the PX5 On/Off power button to turn the unit on.
: The Home screen will be displayed.
Result
MARK001b
Home screen features
Home screen is frequently referenced as the starting point for all major functionalities of PX5.
The date and time appear on the top right corner of the Home screen. Both can be configured to appea r in a dif fe rent format . See pag e 4- 3 for the pr ocedur e on how to set and reformat time and date.
The unit name and model, PX5 program revision level, and status messages appear on the top portion of the Home screen. Pertinent information that appear in the status message area are the monitoring status, circuit configuration, percentage of data card used while monitoring, site/file name, number of event cycles saved, and number of timed intervals saved.
MONITORING STATUS: OFF indicate s that the instrument is not a ctively monitoring data. The monitoring status message will change to ON, DONE or ARMED, depending upon the state of data monitoring. See page 5-25 for the procedure on how to turn monitoring on/off.
Home screen contains the icons used to access the various PX5 functions. See page 1-16 for the description of each icon found in Home screen.
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Basic Operation, continued
Home screen icons
Home screen contains the following icons used to access various PX5 functions:
Scope
- Scope mode shows real-time voltage and current waveforms of the signals on
the measuring inputs. See Chapter 3 View Real Time Data - Section A Scope Mode.
Meter
- Meter mode displays voltage and current measurements, along with other
calculated parameters. See Chapter 3 View Real Time Data - Section B Meter Mode.
Harmonics
- Harmonic screen displ ays a spectr al graph and textual mat rix feat uring the amplitude and phase of each voltage and current harmonic to the 63rd harmonic. See Chapter 3 View Real Time Data - Section C Harmonics.
Phasor
- Phasor diagrams indicate phase relations between voltage and current based upon the angles of the fundamental. See Chapter 3 View Real Time Data - Section D Voltage and Current Phasor.
Preferences
- Users can set instrument preferences like time and date, threshold alarm feedback, language selection, communications, LCD display, and data card operation. See Chapter 4 Instrument Settings.
Events
- Events result in a co ntiguous c ollecti on of cycl es th at is r ecorded i nto memory. Events are classified according to IEEE 1159, IEC 61000-4-30 Class A, and EN50160 standards. Events are displayed only after monitoring has been turned on or upon reading a stored file from the data card. See Chapter 7 View Event Data - Section A Events.
Trend
- Trend allows users to view plots of journalled data along with min/max
measurements over the interval. See Chapter 7 View Event Data - Section B Trend.
Reports
- PX5 allows users to view two types of re ports on QOS compliance . EN50160 reports show graphs and statistical tables reflecting the compliance of parameters specified according to EN50160 standard. Status shows a quick status summary of Standard PQ, EN50160, and Motor Quality parameters using the annunciator panel. The color coded panel indicates whether or not the parameter is within limits and/or events have occurred since the last time the panel was cleared. See Chapter 8 Reports.
Start/Setup
- Users have the option to use Automatic Setup and proceed directly with data monitoring or they can configure the instrument step-by-step using the Wizard Setup. Users can also do Ad vanced set ups to modify trigger parameters and interval s or tweak threshold sett in gs un der the Advanced Setup Option s. Se e Chapter 5 Start Menu and Chapter 6 Advanced Setup Options.
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CHAPTER 2
Voltage Measu rem ent Cable and C urrent Probe Con nections
Overview
Introduction
In this chapter
WARNING Death, serious injury, or fir e haza rd coul d r esul t fr o m impr o per connect ion of this
This section describes how to connect the PX5 to make basic single phase voltage measurements. For multi-phase connection diagrams, refer to Appendix E.
The following t opics are covered in this c
Topic See Page
Connecting Voltage Measurement Cables 2-4 Connecting Current Probes 2-9
instrument. Read and understand this manual before connecting this instrument. Follow all installation and operating instructions while using this instrument.
Connection of this instrument must be performed in compliance with the National Electrical Code (ANSI/NFPA 70-2005) and any additional safety requirements applicable to your installation.
Installation, operatio n, and ma intena nce of t his in strument must be performed by qualified personnel only. The National Electrical Code defines a qualified person as “one wh o has the skills and knowledge related to the construction and operation of the electrical equipment and installations, and who has received safety training on the hazards involved.”
hapter.
Qualified pers onnel who work on or near exposed energized electrical conductors must follow applicable safety related work practices and procedures including appropriate personal protective equipment in compliance with the Standard for Electrical Safety Requirements for Employee Workplaces (ANSI/NFPA 70E-2004) of USA and any additional workplace safety requirements applicable to your installation.
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Overview, continued
ADVERTENCIA
AVERTISSEMENT
Una conexión incorrecta de este instrumento puede producir la muerte, lesiones graves y riesgo de i ncendio. Lea y entienda es te manual ant es de conect ar. Observe todas las instrucciones de instalación y operación durante el uso de este instrumento.
La conexión de este instrumento debe ser hecha de acuerdo con las normas del Código Eléctrico Nacional (ANSI/NFPA 70-2005) de EE. UU., además de cualquier otra norma de seguridad correspondiente a su establecimiento.
La instalación, operaci ón y mantenimiento de este inst rument o deb e se r realizada por personal califi cado solamente. El Código Eléctrico Nacional define a una persona calificada como "una que esté familiarizada con la construcción y operación del equipo y con los riesgos involucrados."
Si l'instrument est mal connecté, la mort, des blessures graves, ou un danger d'incendie peuvent s'en suivre. Lisez attentivement ce manuel avant de connecter l'instrument. Lorsque vous utilisez l'instrument, suivez toutes les instructions d'install ation et de service.
Cet instrument doit être connecté conformément au National Electrical Code (ANSI/NFPA 70-2005) des Etats-Unis et à toutes les exigences de sécurité applicables à votre installation.
Cet instrument doit ê tr e i nstal lé, ut ilis é et e ntretenu uniquement par un personnel qualifié. Selon le National Electrical Code, une personne est qualifiée si "elle connaît bien la construction et l'utilisation de l'équipement, ainsi que les dangers que cela implique".
WARNUNG Der falsche Anschluß dieses Gerätes kann Tod, schwere Verletzungen oder Feuer
verursachen. Bevor Sie dieses Instrument anschließen, müssen Sie die Anleitung lesen und verstanden habe n. Bei der Verwendung dieses Instruments müssen alle Installation- und Betriebsanweisungen beachtet werden.
Der Anschluß dieses Instruments muß in Übereinstimmung mit den nationalen Bestimmungen für Elektrizität (ANSI/NFPA 70-2005) der Vereinigten Staaten, sowie allen weiteren, in Ihrem Fall anwendbaren Sicherheitsbestimmungen, vorgenommen werden.
Installation, Betrieb und Wartung dieses Instruments dürfen nur von Fachpersonal durchgeführt werden. In dem nationalen Bestimmungen für Elektrizität wird ein Fachmann als eine Person bezeichnet, welche "mit der Bauweise und dem Betrieb des Gerätes sowie den dazugehörigen Gefahren vertraut is t."
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CH 2/ Voltage Measurement Cable and Current Probe Connections
Safety precautions
The following safety precautions must be followed whenever any type of voltage or current connection is being made to the PX5.
• Wear proper Personal Protective Equipment, including safety glasses and insulated gloves when making connections to power circuits.
• Hands, shoes and floor must be dry when making any connection to a power line.
• Before each use, inspect all cables for breaks or cracks in the insulation. Repl ace immediately if defective.
• Press the PX5 On/Off power button to Off.
• Before connecting to electric circuits to be monitored, open their related circuit breakers or disconnects. DO NOT install any connection of the PX5 to live power lines.
• Connections must be made to the PX5 first, then connect to the circuit to be monitored.
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Connecting Voltage Measurement Cables
Connecting Voltage Measurement Cables
Measurement cable set
Optional fused voltage adapter
Description stored in a cable pouch as part of the measurement cable set, P/N 116042-G3. Each cable set consists of a ca ble and alligator clip.
Voltage Rating Vrms max. For mea suring v olt ages g reater than 600 Vr ms, potent ial tr ansformers (PTs) must be used.
Contents to their actual use). A cable set consists of eight, 6-foot channel measurement cable assemblies (probes), each with a detachable, alligator jaw, safety clip assembly (maximum jaw opening, 3/4 in (20 mm)). The safety clip assemblies are red (+) and black (-) for each of the four channels. One cable each of red (channel A), yellow (channel B), blue (channel C), and grey (channel D), and four each of white are provided.
A pouch for storage of the cables and the AC adapter/battery charger is included in the contents of the measurement cable set, but is not shown in the figure.
There are two optional fuse accessory kits available for use with the measurement cables for PX5. One kit (P/N FVA-1) contains one fused voltage adapter and one measurement connecting Red cable 50 cm in length. The other kit (P/N FVA-4) contains four vol tage adapters and four measurement conn ecting cables 50 cm in len gth (one Red, one Yellow, one Blue, and one Grey).
: Voltage measurement cables are provided as standard accessories and are
: Direct connection of all voltage measurement cables are rated at 600
: The voltage measurement cables are shown on page 2-5 (positioned relative
2-4
The single fuse voltage adapter kit is used for one single voltage measurement input. While the four fuse voltage adapter kit is used for a three phase and neutra l voltage measurement inputs.
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Measurement cable set w ith optional fuse diagram
CH 2/ Voltage Measurement Cable and Current Probe Connections
WARNING
WARNING
WARNING
WARNING
NOTE: 2 FT C A B LE INC L U DED W IT H FUSE VOLTAGE ADAPTER
OPTIONAL
FUSE VOLTAGE ADAPTER
OPTIONAL
FUSE VOLTAGE ADAPTER
OPTIONAL
FUSE VOLTAGE ADAPTER
OPTIONAL
FUSE VOLTAGE ADAPTER
PX5-11.vsd
To avoid the risk of electric shock or burns, always connect the safety (or earth) ground before making any other connections.
To redu c e the risk of fire, electrical shock, or physical i njury it is strongly recommended to fuse the voltage measurement inputs. Fuses must be located as close to the load as possible to maximize protection.
For continued protection against risk of fire or shock hazard replace only with same type and rating of recommended fuse. Use only fast blow type fuse which is rated 600V. Recommended fuse type is Littelfuse, part number KLKD0.30 rated 600V AC/DC, 0.3A fast blow.
Do not replace fuse again if failure is repeated. Repeated failure indicates a defective condition that will not clear with replacement of the fuse. Refer condition to a qualified technician.
Contact Dranetz-BMI Customer Service for more information on the fused voltage adapter. Refer to Dranetz-BMI Information Sheet titled Model FVA - Fuse Voltage Adapter, P/N 899107.
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Connecting Voltage Measurement Cables, continued
Connection guidelines
Example: Single phase connection
Follow these guidelines when making voltage connections.
• Refer to the measurement cable set figure for color coding of probes that connect to input channel connectors A, B, C, and D.
• Each channel input has plus (+) and minus (-) differential inputs of 1 to 600 Vrms max.
The following f igure sho ws a volta ge connection to a single phas e circuit for channel A.
2-6
PX5-12.vsd
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CH 2/ Voltage Measurement Cable and Current Probe Connections
Example: Neutral to ground connection
The following f igu re sho ws a v olta ge connec tion using ch annel D as a dif fe rential input for measuring neutral to ground voltage. Connections are identical for split phase and wye configurations. One probe connects the source neutral line to the D+ input. Another probe connects the ground to the D- input.
PX5-13.vsd
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Connecting Voltage Measurement Cables, continued
Safety precautions
WARNING
ADVERTENCIA
AVERTISSEMENT
The following safety precautions apply to current probe connections in addition to those safety precautions stated on page 2-3.
• DO NOT attempt to measure current in any circuit in which the circuit to ground voltage exceeds the insulation rating of the current probe (600 Vrms max).
• Make sure the jaws of the current probe are tightly closed. Keep mating surfaces clean and free from foreign matter.
DO NOT USE non-insulated current probe cores around a non-insulated wire. Probes of this type are designed for use around insulated wires only. Use only completely insulated probe cores with no exposed conductive areas of the core around non-insulated wires.
NO UTILIZAR transformadores de corriente sin material aislante al rededor de conductores sin material aislante. Los Transformadores de corriente de este tipo están diseñados para ser utilizados solamente con conductores con aislamiento eléctrico. Utilizar transformadores de corriente completamente ais lados alrededor de conductores sin aislamiento.
N'EMPLOYEZ PAS les noyaux courants non-isolés de sonde autour d'un fil non­isolé. Des sondes de ce type sont concues pour l'usage autour des fils isolés seulement. L'utilisation seul ement a compl ét ement iso lé des noyaux de sonde sans des secteurs conducteurs exposés du noyau autour des fils non-isolés.
WARNUNG
VERWENDEN Sie keine Stromzangen mit nicht isolierten Ferritkernen bei Messungen an nicht isolierten Leitungen. Stromzangen dieses Typs sind nur für Messungen an isolierten Leitern geeignet. Bitte verwenden Sie zur Messung an nicht isolierten Leitungen Stromzangen mit vollständig isoliertem Kernmaterial.
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Connecting Current Probes
CH 2/ Voltage Measurement Cable and Current Probe Connections
Current probes
Several Dranetz-BMI current probes can be used with the PX5. Typical current probes are illustrated on page 2-10. Refer to Appendix A for descriptions and part numbers of probes and adapter cables. Refer to Appendix B for specifications of current probe models TR2500 and TR2510.
NOTE: The TR2500 can perform all current measurements except high frequency transient detection.
Probe positioning position the probe with the arrow pointing towards the load when monitoring the line conductor. Correct position of the probe is necessary for correct power measurements, where in-phase voltage and current measurements are necessary. A positive watts reading indicates that the probe is pointed towards the load, and a negative reading indicates that the probe is pointed towards the source.
: An arrow marking on the handle is a guide to ensure that you
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Connecting Current Probes, continued
Typical current probes
4300 TO LEMFLEX CURRENT PROBE
ADAPTER CABLE
116310-G1
PX5-14.vsd
NOTE: Current probes TR2500 can be used interchangeably with TR2500A, TR2510 with TR2510A, and TR2520 with TR2520A.
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CH 2/ Voltage Measurement Cable and Current Probe Connections
Typical current probes (continued)
Actual photos of TR series probes and part numbers are shown below to aid users in probe identification. Contact Dranetz-BMI Customer Service Department for more information on current probes, prici ng and availability.
P/N TR-2500
P/N TR-2510 P/N TR-2520
P/N TR-2500A P/N TR-2510A P/N TR-2520A
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Connecting Current Probes, continued
Single phase current probe connection example
The following figure shows how to connect a current probe to channel A for current monitoring of a single phase line.
The current probe may be connected to the return line if desired to measure the return current when checking for load current leakage, loop current relationships, etc. If measuring power, position the probe with the arrow pointing towards the load.
PX5-15.vsd
NOTE: The conne ction shown above is not recommended without a v olta ge connec tion to ensure frequency synchronization. If this configuration is used, then an internal frequency reference must be entered. Refer to pages 5-14 to 5-16.
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Overview
CHAPTER 3
View Real Time Data
Introduction
Access to real time data
PX5 allows users to view power quality phenomena as it happens, when it happens. The instrument is able to captur e and proces s data in r eal time, an d allows use rs to view it in Scope mode, Meter mode, Harmonics, and Phasor display.
Icons for Scope mode, Meter mode, Harmonics and Phasor displ ay are avail abl e in the Home screen. Follow these steps to display the Home screen.
Action... Result...
STEP 1: Press the PX5 On/Off power button to turn th e unit on. The Home screen will be displayed.
MARK001
In this chapter
This chapter is divided into four sections.
Section Title See Page
A Scope Mode 3-2 B Meter Mode 3-5 C Harmonics 3-15 D Voltage and Current Phasor 3-20
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Overview
Overview
Section A
Scope Mode
Introduction
Scope mode screen
Volts/Amps channel labels and RMS values for displayed waveforms
Scope mode allows you to view real-time voltage and current waveforms for up to eight channels simultaneously .
The Scope mode screen can be displayed by pressing the Scope key on the Home screen.
Frequency
Voltage scale
Turn channels on/off (p. 3-3)
Show channels input range (p. 3-4)
MARK201
Return to Home screen
Current scale
Display one cycle of selected waveforms which are scaled relative to the largest peak value. V & I are scaled separately.
In this sect ion
The following topics are covered in this section.
Topic See Page
Turning Channels On/Off 3-3 Checking Input Range 3-4
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Turning Channels On/Off
CH 3/ View Real Time Dat a
Select channels to display
From the Scope mode screen, press Chan to turn Volts/Amps channel selection on/off.
MARK202
Any of the following will turn channels on/off:
• Press the desired Volts/Amps channel to turn it on/off.
• Press Volts or Amps button to turn on/off all channels of that parameter.
• Press A, B, C, D to turn on/off both the Volts and Amps for that channel.
Press OK to accept channel selection.
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Checking Input Range
Checking Input Range
Input range
The Input Range screen is displayed by pressing the CkRng key on the Scope mode screen. Input Range shows the detected range for all channels. The number after the status shows the percentage of the input of the instrument’s full range.
MARK205
The input range can only be viewed, not changed. Press OK when done viewing the input range.
Input range description
The following table describes the messages that may register on the Input Range screen. The instrument is able to detec t the input ra nge for volt age and curren t channe ls A, B, C, and D.
Input Range Description
OK Within Range
OVER Over Range
UNDER Under Range
N/A Channel Disabled
CLIP Clipping
If input range is OVER, UNDER, or CLIP, then the rms readings will not be accurate. Using CTs below 10% of Full Scale may also cause inaccuracies in amplitude, phase and harmonic distortion readings.
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Overview
Section B
Meter Mode
CH 3/ View Real Time Dat a
Introduction
Metered parameters display
In this sect ion
Meter mode allows you to vi ew real-t ime meter da ta. The meter ed parame ters ava ilable are logically separated into the following tabs: Standard, Distortion, User Specified Frequency, Unbalance, and Advanced Power. Meter screens are displayed in tabular form.
NOTE: Meter mode o perat ion doe s not i nterf ere wi th an y of P X5’s other monitoring or recording functions. The indi vidual voltage and current cha nne l me te r rea d i ngs ar e not affected by the monitoring setup. Turning monitoring of individual channels off does not affect meter readings. Meter and Scope data is NOT available if you are viewing a stored file from the data card.
PX5 is designed to provide setup as well as data display. Metered parameters are available for display regardless if they are being journalled under Setup New Circuit > Advanced Options > Journal Limit Setup. Users can trend journal entries by limits (Very High, High, Low, Very Low) or by time (users can set the time interval of how often rms and waveform snapshots will be re corded even when no dis turba nces occu r). For the procedure on how to set entries under journal parameters, go to Chapter 6 Advanced Setup Options - Journal Limit on page 6-17.
The following topics are covered in this section.
Topic See Page
Standard Mete r Tab 3-6 Distortion Meter Tab 3-8 User Specified Frequency Meter Tab 3-10 Unbalance Meter Tab 3-11 Advanced Power Meter Tab 3-12
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Standard Me ter Tab
Standard Meter Tab
Standard mete r list
Meter mode can be displayed by pressing the Meter icon on the Home screen. At start­up, meter mode defaults in the Standard tab featuring the basic power quality parameters available. The standard metering properties include Voltage, Computed Basic, Power, Demand, Energy, Harmonics and Flicker as shown below.
MARK301
Standard Tab Parameter Name Label
Basic
(for A, B, C, D)
Vol ts NOTE: Som e voltage channel meter
Vol ts
values are derived based on the circuit type selection. The values will change depending on the wiring configuration setup.
3-6
Ampere Amps
Computed
Basic
Vector Displacement Power Factor Vector Displacement PF Arithmetic Displaceme nt Power
Factor
Arithmetic Displaceme nt
PF Residual Current Residual Current Net Current Net Current
Power
(for A, B, C, D,
Total)
Watts W Vol ts Ampere VA Volts Ampere Reactive VAR True Power Factor TPF Displacement Power Factor DPF
NOTE: See Appendix B Technical Speci fi ca ti ons - Computed Parameters on page B-6 for definition of parameters.
Continued on next page
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Standard mete r list (continued)
CH 3/ View Real Time Dat a
Standard Tab Parameter Name Label
Demand Active Power Demand Active Power Demand
Apparent Power Demand Apparent Power Demand Reactive Power Demand Reactive Power Demand RMS Current Demand Phase A RMS Current Demand Ph A RMS Current Demand Phase B RM S Current Demand Ph B RMS Current Demand Phase C RM S Current Demand Ph C RMS Current Demand Average RMS Current Demand Avg
Energy
(for A, B, C, D,
Watt Hours Watt Hrs Volts Am p ere Hours VA Hrs
Total)
Volts Ampere Reactive Hours VA R Hrs
Harmonics
(for A, B, C, D)
Voltage Total Harmonic Distortion V THD Current Total Harmonic Distortion I THD RMS Harmonic Current RMS I Harm Harmonic Power Unsigned Harm Pwr Unsigned
Flicker
(for A, B, C )
Short Term Flicker Pst Long Term Flicker (Sliding) Plt (Slide) Long Term Flicker Plt
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Distortion Meter Tab
Distortion Meter Tab
Distortion meter list
PX5 is able to meter distort ions or u ncharacte ristic changes in t he waveform of origina l signals. Distortion calculations measure the deviation of complex waveshapes from pure sine waves. Harmonics are measured in accordance with IEC 61000-4-7 Class I.
MARK311
Distortion Tab Paramete r Name Label
THD
(for A, B, C, D)
Voltage Total Harmonic Distortion Fundamental
Current Total Harmonic Distortion
V THD fund
I THD fund
Fundamental Voltage Total Harmonic Distortion Root
V THD RSS
Sum of Square Current Total Harmonic Distortion Root
I THD RSS
Sum of Square
TID
(for A, B, C, D)
Voltage Total Interharmonic Distortion Fundamental
Current Total Interharmonic Distortion
V TID fund
I TID fund
Fundamental Voltage Total Interharmonic Distortion
V TID RSS
Root Sum of Square Current Total Interharmonic Distortion
I TID RSS
Root Sum of Square
Continued on next page
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Distortion meter list (continued)
CH 3/ View Real Time Dat a
Distortion Tab Parameter Name Label
TIF
(for A, B, C, D)
Crest Factor
(for A, B, C, D)
Power
(for A, B, C, D)
Transformer
(for A, B, C, D)
Voltage Telephone Influence Factor
V TIF fund
Fundamental Current Telephone Influence Factor
I TIF fund
Fundamental Voltage Telephone Influence Factor
V TIF RMS
RMS Current Telephone Influence Factor
I TIF RMS
RMS Telephone Influence Factor Product TIF Prod Voltage C rest Factor Volts Crest Factor Current Crest Factor Amps Crest Factor Signed Phase Harmonic Power Signed Unsigned Phase Harmonic Power Unsigned Transfor mer Dera ting Factor Derating Factor K Factor K Factor
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User Specified Frequency Meter Tab
User Specified Frequency Meter Tab
User frequency meter list
Voltage and current harmon ics for each phas e and neutral ch annel can be metere d under the User Specified Frequency tab. The value fields are initially not specified to allow users to choose the numbers or the ra nge of harmonic frequen cies to meter. The system simultaneously measures voltage and current so that harmonic power can be obtained.
Whereas harmonic summary values include harmonics up to the 127th in Standard Power Quality mode, individual harmonics displayed on the instrument are only available up to the 60th.
MARK321
User Frequency Tab Parameter Name Label
Voltage
(for A, B, C, D)
User Selected Voltage Harmonic 1 User 1 User Selected Voltage Harmonic 2 User 2 User Selected Voltage Harmonic 3 User 3 User Selected Voltage Harmonic 4 User 4
Current
(for A, B, C, D)
User Selected Current H armonic 1 User 1 User Selected Current H armonic 2 User 2 User Selected Current H armonic 3 User 3 User Selected Current H armonic 4 User 4
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Unbalance Meter Tab
CH 3/ View Real Time Dat a
Unbalance meter list
The Unbalance metering tab shows positive, negative and zero sequence components for voltage and current.
MARK331
Unbalance Tab Parameter Name Label
V/I Sequence Positive Sequence Voltage Positive Sequence Voltage
Negative Sequence Voltage Negative Sequence Voltage Zero Sequence Voltage Zero Sequence Voltage Positive Sequence Current Positi ve Sequence C urrent Negative Sequence Current Negative Sequence Current Zero Sequence Current Zero Sequence Current
V/I Unbalance Voltage Unbalance (RMS/RMS
Average)
V Unbalance (RMS/RMS
Avg) Voltage Unbalance (S2/S1) V Unbalance (S2/S1) Voltage Unbalance (S0/S1) V Unbalance (S0/S1) Current Unbalance (RMS/RMS
Average)
I Unbalance (RMS/RMS
Avg) Current Unbalance (S2/S1) I Unbalance (S2/S1) Current Unbalance (S0/S1) I Unbalance (S0/S1)
V/I Imbalance Voltage Imbalance V Imbal
Current Imb alance I Imbal
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Advanced Power Meter Tab
Advanced Power Meter Tab
Advanced power meter list
Advanced power metering tab meters multiple total apparent power and power factor parameters, calculated using arithmeti c and vector sums of t he individual phases. These methods may produce different values with distorted and/or unbalance phases. Demand/Advanced Energy include various energy parameters on per phase and total basis as well as in forward and reverse mode. Some parameters such as displacement power factor are only valid for the fundamental frequency. The Advanced tab also allows trending of rapid voltage changes that result in light flicker. Flicker parameters under the Advanced tab are used primarily for specialized testing. Flicker measurements are calculated as per IEC 61000-4-15.
MARK341
Advanced Tab Parameter Name Label
Arithmet ic Sum Arithmetic Sum Power Factor Arithmetic Sum PF
Arithmetic Sum Displa cement
Arithmetic Sum DPF
Power Factor Arithmetic Sum Volts Ampere Arithmetic Sum VA Fundamental Arithmetic Sum
Fund Arithmetic Sum VA
Vol ts Ampere
Vector Sum Vector Sum Power Factor Vector Sum PF
Vector Sum Displace ment
Vector Sum DPF
Power Factor Vector Sum Volts Ampere Vector Sum VA Fundamental Vector Sum Volts
Fundamental Vector Sum VA
Ampere
Continued on next page
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Advanced power meter list (continued)
CH 3/ View Real Time Dat a
Advanced Tab Parameter Name Label
Peak Power Peak Watt Demand Peak Watt Demand
Peak Volts Ampere Demand Peak VA Demand Peak Volts Ampere Reactive
Peak VAR Demand
Demand Peak Current Demand Phase A Peak Current Dmd Ph A Peak Current Demand Phase B Peak Current Dmd Ph B Peak Current Demand Phase C Peak Current Dmd Ph C Peak Current Demand Average Peak Current Demand Avg
Predicted Power Predicted Watt Demand Predicted W Demand
Predicted Volts Ampere Demand Predicted VA Demand Predicted Volts Ampe re
Predicted VAR Demand
Reactive Demand
Coincident Power Volts Ampere Demand at Peak
Watt Demand Volts Ampere Reactive Demand
at Peak Watt Demand Watt Demand at Peak Volts
Ampere Reactive Demand Volts Ampere Demand at Peak
Volts Ampere Reactive Demand Volts Ampere Reactive Demand
at Peak Volts Ampere Demand
VA Demand at Peak Watt
Demand
VAR Demand at Peak Watt
Demand
Watt Demand at Peak VAR
Demand
VA Demand at Peak VAR
Demand
VAR Demand at Peak VA
Demand
Coincident Power
Factor
Watt Demand at Peak Volts Ampere Demand
Average Power Factor at Peak Watt Demand
Average Power Factor at Peak Volts Ampere Reactive Demand
Average Power Factor at Peak Volts Ampere Demand
Watt Demand at Peak VA
Demand
Avg PF at Peak W Demand
Avg PF at Peak VAR
Demand
Avg PF at Peak VA Demand
Continued on next page
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Advanced Power Meter Tab, continued
Advanced power meter list (continued)
Advanced Tab Parameter Name Label
Advanced Energy
(for A, B, C, D,
Total)
Forward Fundamental Frequency Watt Hours
Forward Fundamental Frequency
Fwd Whr
Fwd VAR Hr
Volts Ampere Reactive Hours Reverse Fundamental Frequency
Rev Whr
Watt Hours Reverse Fundamental Frequency
Rev VAR Hr
Volts Ampere Reactive Hours
Instantaneous
Flicker
Instantaneous Flicker Pinst Instantaneous Flicker LPF Pinst LPF
(for A, B, C )
Square Root of Instantaneous
Pinst Sq Root
Flicker Square Root of LPF Sq Root LPF
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Overview
Section C
Harmonics
CH 3/ View Real Time Dat a
Harmonics display
PX5 allows users to vi ew v oltag e and curre nt har moni cs/ inter harmoni cs in gr aphic al or in list form. Harmonics are waveform distortion, a steady-state deviation from an ideal power frequency sinu soid an d is c haract eriz ed by the s pectr al co ntent of the wave form. Interharmonics are fr eque ncy components between the h armon ic frequencies. The IEC 61000-4-7 Standard dictates that harmonic analysis is done using a synchronous window of 10 cycles for 50 Hz, or 12 cycles for 60 Hz. This results in bins which are nominally 5 Hz wide. The actual width of the bins is equal to the actual frequency divided by 10 if the nominal frequency is 50 Hz, and 12 if 60 Hz. For example, if actually operating at 49.9 Hz, the bin is 4.99 Hz, but is labelled “5 Hz” as specified by the standard.
Use the respective touch screen but tons to dis play the next Channe l (Channe ls A, B, C, D) and the next Parameter (V, I, W) of harmonic data. The number of harmonics/ interharmonics displayed is up to the 60th. Summary values of odd, even and total distortion are displayed. A summary of harmonic distortion as well as interharmonic distortion values per phase/parameter are also available on display.
Users can determine the numbe r or ran ge of harmonic frequencies t o tr end and view in detail. There is also the option to select how to plot harmonic/interharmonic data and specify the units of measure by which harmonic data is calculated.
Harmon i c Graph Users can choose the unit of measure by which harmonic data is calculated and graphed, based on a Per centage of the fundament al value or in Engineeri ng u nits (volts and amps). Frequency co mponen ts of harmonic graph s can b e disp lay ed eit her i n Hertz or in Harmonic Number. The graphs can be zoomed and rescaled.
: Harmonics are measured in ac cordance with IEC 61000-4-7 Cl as s 1.
Harmon i c L i st measured values: f requency a nd harmonic number; magn itude in Engineeri ng units and percent of fundamental ; ph ase in degrees (for harmonics o nly). This list is dis pl ayed in order of ascending frequency, and can also be sorted in order of descending magnitude.
In this sect ion
The following topics are covered in this section.
Harmonic Graph 3-16 Harmonic Detail 3-17 Harmonic Options 3-18 Harmonic List 3-20
: The list gives a textual display of the following for each of the
Topic See Page
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Harmonic Graph
Harmonic Graph
Harmonic graph display
Total harmonic distortion (THD) on Odd contribution and Even contribution based on 127 harmonics*
The harmonic graph can be di sp layed by pressing Harmoni cs on the Home screen. The screen defaults to a graphical spectrum display, although users have the option to choose between the graph and li st form. The scree n will show a spectra l graph featuri ng the amplitude of the harmonics relative to the fundamental frequency.
Use the properties under the Options button to select the vertical and horizontal measurement scale. The percent magnitude of the first 60 harmonics are graphed relative to the fundamental.
Display is updated approximately once per second
MARK221
Switch channel display
Switch to V, I, or W
3-16
Zoom in to desired range of frequencies (p. 3-17)
Set harmonic options (p. 3-18)
Show harmonics text (p. 3-20)
*The odd contribution is the square root of the sum of the squares of the relative amplitudes of harmonics 3, 5, and 7 through N-1, where N is a function of sampling frequency. The even contribution is similar for harmonics 2, 4, and 6 through N. Total value is the square root of the sum of the squares of the odd and even distortions.
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Harmonic Detail
CH 3/ View Real Time Dat a
Harmonic graph details
PX5 allows users to determine the numbers or the range of harmonic frequencies to trend. A blue box showing the default zoomed area appears once the Detail button is pressed. Touch any side of the zoom box to activate the drag function. Touch and drag the sides of the zoom box to expand or narrow in on a select number of harmonic/ interharmonic graphs. The zoom box moves horizontally only. The vertical scale will autoscale when zoomed.
NOTE: To select whether the vertical is scaled to the fundamental or the greatest harmonic, use the Options key (see page 3-18).
Fundamental exceeds square so bar extends past top
touch and drag zoom box to desired magnification scope
MARK235
MARK235b
harmonic data plot
(shown in channel color)
interharmonic data plot
(shown in gray)
MARK235c
The magnify buttons serve as zoom function keys, each of which feature a plus sign or a minus si gn within. Press Zoom+ to display the zoomed area and view harmonic graphs in greater detail. Users may repeatedly zoom in on a plot for up to seven (7) levels. Press Zoom-(n) to unzoom graph displa y one incr ement at a time, where n is th e counter of how many times the harmonic graphs have been magnified.
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Harmonic Options
Harmonic Options
Harmonic/ Interharmonic data plots
The voltage and current harmonics and/or interharmonics for each phase channel can be trended using the Options button. The properties specifi ed under Harmonic Options apply when harmonic/interharmonic data is viewed in either graph or list form.
Properties under Show Harmonics... pertain to both the graph and the list, and determine how the harmonics and interharmonics are used.
If Show Harmonics... only is enabled, then only the actual harmonics are shown.
If Show Harmonics... and Interharmonics is enabled, the spectrum will include all the (nominal) 5 Hz bins, which includes the actual interharmonics as well. On the graph, the harmonics are shown in the channel color, while interharmonics are shown in gray color. On the text, the harmonics are shown in boldface.
If Show Harmonics... calculated including adjacent interharmonics is enabled, the interharmonics are not explicitly shown but the harmonic values include the adjacent interharmonic values in their calculation, as specified by IEC 61000-4-7.
The IEC 61000-4-7 Standard specifies that the interharmonic bins adjacent to the harmonic be included in the computation of that harmonic. For example, if there was a 3rd harmonic (150 Hz) of 10%, and the value of the 145 Hz bin was 1%, and the value of the 155 Hz bin was 2%, then the value reported in the bin labelled “150 Hz” would also include contributions from the 145 Hz and 155 Hz bins. This would give
222
=
2110 ++
10.2%, not 10%.
The following graphs illustrate harmonic computation as per IEC 61000-4-7 Standard.
Harmonic Computation for 50 Hz
3.0%
2.5%
2.0%
1.5%
1.0%
0.5%
0.0% … 130 135 140 145 150 155 160 165 170 175 180 185 190 195 200 205 210 215 220 …
3rd harmonic
+
2 adjacent
interharmonics
4th harmonic
+
2 adjacent
interharmonics
Continued on next page
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CH 3/ View Real Time Dat a
Harmonic/ Interharmonic data plots (continued)
Harmonic Computation for 60 Hz
3.0%
2.5%
2.0%
1.5%
1.0%
0.5%
0.0% … 160 165 170 175 180 185 190 195 200 205 210 215 220 225 230 235 240 245 250 …
3rd harmonic
+
2 adjacent
interharmonics
4th harmonic
+
2 adjacent
interharmonics
Properties under Graph Units pertain to the wa y the gra ph (not t he list ) is la belled. The vertical scale can be in Percent or Engineering units, and Scale to Fund (full scale) can be chosen to be the fundamental at 100% or the largest component. The engineering unit fo r vol ta ge is volts and for current is amperes . The horizontal axis ca n be in Hz or Harmonic Number.
harmonic data display
measurement scale for frequency (x axis) and amplitude (y axis) of harmonics
full scale graph relative to fundamental frequency
MARK236
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Harmonic List
Harmonic List
Harmonic text display
To view the harmonics magnitude text display, press List from the Harmonic graph screen on page 3-1 6. Th e harmonic parameter s displ ayed on l ist inc lude: (f rom le ftmost column) the harmonic/interharmonic frequency in Hz, frequency in number, voltage rms or maximum load o f c ur rent (depending on par amet er selected), percent amplitude of harmonics, and harmonic phase angle value.
By default, harmonic and interharmonic frequency values are arranged in order of increasing frequency. Use the Sort button to organize harmonic text display in order of decreasing magnitude. The harmonic values are shown in boldface.
Harmonic phase degre e values from 1 t o 60 a re displ ayed for voltage and curr ent; whi le phase degree values from 1 to 50 are displayed for harmonic watts. Harmonic phase angle values can be normalized to the phase of the fundamental of the displayed channel. Use the Norm button to show the normalized phase angle values.
3-20
MARK237
Toggle between Normalized and UnNormalized phase value s
MARK237b
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Overview
CH 3/ View Real Time Dat a
Section D
Voltage and Current Phasor
Phasor display
In this sect ion
The phasor screen displays a graph that indicates the phase relations between the voltage and current based upon the angles of the fundamentals, as determined by Fourier analysis.
Phasor screen shows eight phasors autoscaled with zero degrees to the right (normally channel A voltage) for clockwise rotation and with synchronized channels. Users are allowed to display up to four channels at any one time for either volts or amps, or a single channel for both volts and amps, depending on the phases being monitored.
A touch screen Demo button presents an animated phasor demo rotation for resistive, capacitive and inductive loads.
The following topics are covered in this section.
Topic See Page
Phasor Screen 3-22 Phasor Rotation 3-23 Phasor Parameter/Channel Selection 3-25
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Phasor Screen
Phasor Screen
Phasor screen display
If a channel is less than 20% of the maximum voltage (or current), the phasor is not displayed
The Phasor screen is displayed by pressing Phasor on the Home screen.
The Phasor screen shows eight phasors autoscaled with zero degree to the right for clockwise rotation and with synchronized channels. The left sidebar shows rms values for Volts/Amps for channels A, B, C and D; zero, positive and negative values for Volts/Amps; zero, positive and negative sequence component values for Volts/Amps.
Depending on the phase s being mon itore d, up t o four ch annels may be d ispla yed at an y one time for either Volts or Amps, or a single channel for both Volts and Amps. An arrow head and channel label are displayed on the vector.
Correct rotation is clockwise from 0
º
Sync channel is displayed at 0 normally channel
A voltage
º -
3-22
MARK241
Show animated phasor demo rotation for Resistive, Inductive and Capacitive loads (p. 3-23)
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Phasor Rot a tion
CH 3/ View Real Time Dat a
Animated phasor rotation
Sample 3-Phase, three wire delta rotation
Graphic illustration in the form of rotating phasors relative to the sine wave graph of a four wire wye circuit is available by pressing the Demo button on the Phasor screen (see page 3-22). The Demo key wi ll be replaced by Start/ S t op once phasor rotation has been viewed. Press Start to replay animated phasor rotation. Users can choose to St op the phasor demo rotation at any time.
Phasor vectors are displayed using a clockwise rotation from the zero degrees reference. Animated phasor demo for Resistive, Inductive and Capacitive loads is available for viewing.
The following diagrams describe the positive phase rotation of voltage and current phasors (for Resistive, Inductive and Capacitive loads) for a three phase, three wire delta connection. An arrow head on the line indicates direction pointing toward the load.
Three phase vectors are displayed as three lines, 120 degrees apart in a Resistive load
MARK242
Display parameter/channel selection (p. 3-25)
Start/Stop demo plot waveforms as rotate phasors; press any time
Switch phasor demo rotation between Resistive, Inductive and Capacitive load effects; press any time (p. 3-24)
Return to Phasor screen
Continued on next page
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Phasor Rotation, continued
Sample 3-Phase, three wire delta rotation (continued)
The following diagrams describe the positive phase rotation of voltage and current phasors (for Resistive, Inductive and Capacitive loads) for a three phase, three wire delta connection. An arrow head on the line indicates direction pointing toward the load.
Three phase vectors are displayed as three lines, 120 degrees apart in an Inductive load
MARK243
Phasor diagrams
Three phase vectors are displayed as three lines, 120 degrees apart in a Capacitive load
MARK244
Refer to Appendix E for the diagrams that describe the voltage and current phasors for the standard type of power connections.
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Phasor Parameter/Channel Selection
CH 3/ View Real Time Dat a
Parameter/ Channel display
The Parameter/Channel selection screen is displayed by pressing Chan on the phasor Demo screen. Depending on the phases being monitored, up to four channels may be displayed at any one time for either Volts or Amps, or a single channel for both Volts and Amps.
MARK245
Press to enable/disable the parameter/channel for display in the animated phasor rotation. Any of the foll owing will tur n channels on/o ff:
• Press the desired Volts/Amps channel to turn it on/off.
• Press Volts or Amps button to turn on/off all channels of that parameter.
• Press A, B, C, D to turn on/off both the Volts and Amps for that channel.
Press OK to accept channel selection. The phasor Demo rotations will display the parameters/channels enabled.
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Overview
CHAPTER 4
Instrument Settings
Introduction
In this chapter
This chapter describes the miscellaneous tasks that users can perform to keep the PX5 running efficiently. These are tasks that users might perform only occasionally.
The following topics are covered in this chapter.
Topic See Page
Access Instrument Settings Menu 4-2 Time and Date Settings 4-3 Select Language 4-5 Set Display Preferences 4-6 Touch Screen Calibration 4-7 Turn Threshold Beeper On/Off 4-9 Communications 4-10 Data Card 4-12 Reset to Factory Configurations 4-14
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Access Instrument Settings Menu
Access Instrument Settings Menu
Preferences menu screen
All functions in this chapter are found under the Instrument Settings menu. Follow these steps to display the Instrument Settings menu screen.
Action... Result...
STEP 1: Press the PX5 On/Off power button to turn the unit on. The Home screen will be displayed.
MARK001b
STEP 2: Press Preferences. The Instrument Settings Setup Menu will be displayed.
MARK151
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Time and Date Settings
CH 4/ Instrument Settings
Time and Date display
Users have the option not only to set the exact time and date, but also to select the format of how time and date will appear on screen.
Action... Result...
STEP 1: From the Instrument Settings Setup Menu scr een, press Time and D ate.
•Press Time if you want to
change the time settings. Proceed to Step 2 on page 4-4.
•Press Date if you want to
change the date settings. Proceed to Step 3 on page 4-4.
•Press Date St yle to select the
format in which you want date displayed on screen. View the three different date format selections each time you press Date Style.
• mm/dd/yy format
• dd/mm/yy format
• yy/mm/dd format
MARK152
•Press Clock Style to select the
format in which you want time displayed on screen. View the three different time format selections each time you press Clock Style.
• analog
• digital using 1 to 12 hr format (AM/PM)
• digital using 1 to 24 hr format
•Press OK to accept new time/
date settings and return to Instrument Settings menu.
•Press Cancel to discard
changes in time/date settings and return to Instrument Settings menu.
Continued on next page
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Time and Date Settings, continued
Time and Date Display (continued)
Action... Result...
STEP 2: Press the field representing hours, minutes, and seconds to change time settings. Use the numeric keypad to enter new time settings. T ime s hould be entered in a 24-hour format (example: 14:00:00 for 2:00 PM).
•Press OK to accept changes in
time settings.
•Press Cancel to discard
changes in time settings.
NOTE: Clock time and format can be changed anytime following this same procedure.
MARK153
STEP 3: Press to select the month, day , and year . Ente r the year using numbers from the keypad.
•Press OK to accept changes in
date settings.
•Press Cancel to discard
changes in date settings.
NOTE: Date settings and format can be changed anytime following this same procedure.
MARK154
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Select Language
CH 4/ Instrument Settings
Select Language
PX5 menu screens appear in the English language by default. Users have the option to set screen display to any of the following languages: English, Swedish, Spanish, German, French, Italian, Simplified Chinese, Traditional Chinese, or Finnish.
Action... Result...
STEP 1: From the Instrument Settings Setup Menu scr een, press Language.
• Check to select the desired language in which you want display screens to appear.
•Press OK to accept new language selection. The screen will return to Instrument Settings menu. All screens will automatically change to the selected language.
•Press Cancel to retain presen t language.
MARK155
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Set Display Preferences
Set Display Preferences
LCD settings
User programmable settings for the LCD screen include the backlight timer, contrast, password protect, parameter/channel colors, and touch screen calibration.
Action... Result...
STEP 1: From the Instrument Settings Setup Menu scr een, press Display Preferences.
• Automatic backlight shutoff timer is provided for the LCD display. Press Backlight Timer to automatically turn off backlight after 1, 2, 5, 10 or 15 minutes of no user activity. Set the Backlight Timer to Always On if you do not want the backlight to s hut off.
NOTE: The auto-shutoff feature extends the life o f the batt ery and should be duly considered.
• Press Contrast to brighten/dim screen display to preferred percentage.
• Press Password Protect to enable/disable p assword log in code to PX5. When password protect is enabled and the user reactivates PX5 from auto­shutoff (see Backlight Timer setting), the keypad screen used to enter password will appear. The user will have to en te r the correct password to continue using PX5. The message Invalid Password! will appear when an incorrect password is entered.
• Press Channel Colors to change the color of the parameter/ channel display. Select desired color from a 28 color selection grid.
• Press Calibrate Touch Screen to calibrate the unit’s touch screen functionalities. Proceed to page 4-7.
• Press Exit to return to Instrument Settings menu.
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Touch Screen Calibration
CH 4/ Instrument Settings
Calibration procedure
PX5 is able to perform calibration to ensure the proper operation of the unit’s touch screen functionalities. The calibration procedure will correct the problem of out of tolerance touch screen malfunction. Note that errors corrected by this calibration procedure are specific only to touch screen operation.
Action... Result...
STEP 1: From the Display Setup Menu (see page 4-6) scre en, press Calibrate Touch Screen.Test if touch screen recognition operates properly by applying pressure on the LCD screen.
•Press Clear to reset LCD screen and delete display markings.
•Press Calib to begin touch screen calibration procedure. Proceed to Step 2.
•Press Cancel to end calibration test and return to Display Setup.
MARK164b
STEP 2: Follow the instruction Tap Center of Target to begin calibration. Target object X is initially located in the lower middle section of the screen.
• A series of screens will flash showing movement of the target object: from the lower middle section to mid-right and finally to upper left section of the screen.
• To end touch screen calibration, tap the center of the target object X now located in the upper left section of the screen. Proceed to Step 3 on page 4-8.
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Touch Screen Calibration, continued
Calibration procedure (continued)
Action... Result...
STEP 3: Once touch screen calibration is done, a mess age will appear to indicate Touch screen
was successfully calibrated.
•Press OK to continue on with calibration test verification. Proceed to Step 3.
STEP 3: Test if touch screen recognition operates properly by applying pressure on the LCD screen.
MARK167
•Press Clear to reset LCD screen and delete display markings.
•Press Accept to complete the touch screen calibration procedure. Accepting will save and store new touch screen calibration data in memory. Once the new data is stored, the old touch screen calibrat i on data is lost. The screen wi ll return to the D isplay Setup Menu.
•Press Cancel to discontinue the touch screen calibration procedure. Pressi ng Cancel will retain the previous touch screen calibration constants, no new calibration data will be stored in memory. The screen will return to the D isplay Setup menu.
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Turn Threshold Beeper On/Off
CH 4/ Instrument Settings
Audible alarm
When set to ON, the unit will beep when threshold limits are crossed and other event triggers occur. The beep that provides audible feedback to pressing touch screen key is not affected by this setting.
Action... Result...
STEP 1: From the Instrument Settings Setup Menu scr een, press Turn Beeper On/Off.
• The unit can provide audible alarm signals when triggered. Press Threshold Beeper to turn the alar m On or Off.
•Press Exit to return to Instrument Settings menu.
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Communications
Communications
Communication interface setup
Communi cations Settings is where instrument-spe cific information is entered to allow the PX5 to communicate to ex ternal devic es using the opt ional
Isolated Communications Module assemblies or modem (see related information on Chapter 9 Downloading Events).
Action... Result...
STEP 1: From the Instrument Settings Setup Menu screen, press Communications.
•Press Enable
activate/deactivate the communications port. External communication devices connect to the PX5 mainframe via the optical serial data port. The optical serial data port connector is located on the left side of the instrument.
• Press to enter the communications
Device Address
use with the optional Fiber Optic to Ethernet adapter.
• Select the corresponding
Rate
to set connection speed.
Default baud rate is 11520.
•Press
•Press
•Press
•Press
External Modem
Connected
communications via an external modem. the modem initialization string. The string must begin with “AT”. Dranetz-BMI recommends using the same brand and model of modem at both ends of the communications link. See C hapter 9 Downloading Events for instructions on modem connections.
IP
Ethernet settings and allow the PX5 to operate on the network. Proceed to Step 2 on page 4-11.
OK
communications settings.
Cancel
communications settings and return to Instrument Settings menu.
Communications
from 01 to 32 for
Baud
if you want to activ a te
Press
Change
to configure your
to accept changes in
to discard changes in
to modify
to
MARK159
NOTE: For instructions on how to physically connect to NodeLink using the external communications devices, see Chapter 9 Downloading Events.
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Communication interface setup (continued)
Action... Result...
STEP 2: Entering the correct IP address se ttings will enable the PX5 to communicate with the network.
Prior to entering the IP setttings, make sure th at the PX5 is connected to the computer network via the Fiber optic to Ethernet Ad apter (P/N COMM­OEA).
After you have determined the proper IP address and settings, proceed as follows:
• Type in your Ethernet IP Address in the appropriate fields. Use the numeric keypad to enter the I P setting.
CH 4/ Instrument Settings
MARK159b
• Type in your Ethernet Subnet Mask in the appropriate fields.
Use the numeric keypad to enter the Subnet Mask setting.
• Type in your Gateway in the appropriate fields. Use the numeric keypad to enter the Gateway setting.
When done entering IP settings, press OK. Pressing OK wil l st ore the values in the instrume nt.
Press Send to configure the Ethernet adapter us ing the new IP address se ttings. Follow the instructions that appear on screen to complete the IP setting configuration procedure.
Press Cancel to ignore changes and retain the previous IP settings, no new value s will be stored in the instrument.
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Data Card
Data Card
Format/View data card
The Memory Card screen displays information on the card inserted in the data card sl ot, including the amount of total space, available space, and used space in card. The Memory Card screen also prompts us ers to set filename and format ca rd i n preparation for monitoring and writing of data.
Action... Result...
STEP 1: From the Instrument Settings Setup Menu scr een, press Memory Card.
• Card Status indicates status condition of the c ard inserted in the data card slot. The following messages may appear under Card S ta tus (r efer to pages 5-20 to 5-21 for a detailed description of each card status message):
•Not Inserted
• Contains File
•Empty
•Fragmented
•Unformatted
•Invalid Card
• Card size indicates the full storage capacity of the data card. The amount of remaining space and used space in data card are also displayed on screen.
•Press Format to fo rmat the data card. Proceed to Step 2 on page 4-13.
NOTE 1: PX5 does not support file fragmentation. When creating a file, it will take the largest continuous block and use that size block for data storage. Deleting files from data card is not recommended. Whenever possible, transfer the fi le s t o a computer and then ref ormat the card using the PX5 when there is no more space available to begin new data storage.
NOTE 2: Refer to Chapter 5 St art Menu - Site Name/Memory Card on pages 5-20 to 5-23 for more information on data card operation.
MARK160
• Press View to display files stored in data card. Proceed to S tep 3 on page 4-13.
• Press Exit to discard cha nges and return to Instrument Settings menu.
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Format/View data card (continued)
CH 4/ Instrument Settings
Action... Result...
STEP 2: A ll data and setups stored in data card will be lost when you format the card.
• A confirmation message verifies whether you want to continue with data card format or not.
Press Yes to continue data card format. Press No to c anc el data card format.
• The message Format Successful! indicates that data card format has been completed. Press OK to exit card format procedure and return to the M emory Card screen.
STEP 3: PX5 lists data file n ames stored in data card, alon g with file size, time and date when data was recorded. The text color indicates the type of file: black is for data file (.ddb), green is for setup file (.set), and red is for an unknown file.
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MARK162
•Press Up/Down arrow keys to scroll the page up or down by one line.
• Press and drag the scroll bar to move the page up or down.
MARK163
•Press Exit to quit and return to Memory Car d screen.
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Reset to Factory Configuration
Reset to Factory Configurations
Definition
Procedure
Factory configurat io ns a re the default set tings of all progra mmab le features of the PX5 as it left the factory.
Follow these steps to reset the PX5 to its factory configuration.
Action... Result...
STEP 1: From the Instrument Settings Setup Menu scr een, press Reset to Factory Defaults.
A confirmation message verifies if you want to rese t the inst rument to factory configuration and lose all new data and settings.
•Press Yes to erase existing settings an d reset the instrument to factory­configured setups. The screen will return to the Instrument Settings menu.
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•Press No to cancel.
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CH 4/ Instrument Settings
Factory default settings
Dranetz-BMI has set the default values for the various parameters of the PX5.
Current Probes: Scale Factors: Circuit Type: Mode of Operation: Nominal Value: Monitoring Mode: Advanced Operations: Transient Limits :
TR2500/TR2500A for A, B, C; TR2510/TR2510A for D
1:1 for V and I, channels A, B, C, D
three phase wye
monitor
measured V, I, frequency
Standard Power Quality
individual limit setups
intantaneous peak = 3X nominal V, waveshape = 10% ,
rms dev = 10% , fast transient = 3X nominal V, none for I
RMS Variation Limits:
10% Very Low, 90% Low, 110% High for voltage; none for
current
Journal Limit: Triggers:
journalling By Time for the various parameters
all V trigger; all V and I channels
Journal Interval
Power Values: Power Values Interval: 15 minutes Waveform Snapshot: OFF Demand and Energy: Demand Sub-Interval: 5 minutes Sub-Intervals per Interval: 3 Harmonics Journal Interva l: Flicker:
15 minutes
Pst (Short Term) Interval: 10 minutes
Plt (Long Term) Interval: 2 hours Site Name: Clock Type: Date: Language:
Power Xplorer Site
Analog
mm/dd/yy
English
Display
Backlight Timer: 1 minute
Contrast:
Password Protect:
70%
OFF
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Overview
CHAPTER 5
Start Menu
Start menu options
The Start Menu allows u sers to pe rform the f ollowing: set up the PX5 for monit oring of an electrical system, load previously saved setups from card, and load data from card.
There are three ways to set up the instrument for monitoring. The length of time to monitor a circuit can vary from a few hours to a few weeks depending on the user application.
•Automatic Setup current channels, and parameter thresholds. The auto-configured setup enables users to proceed directly with data monitoring.
•Wizard Setup about the circuit t o be mo nit or ed. The unit automatically turns on the correct vol tage and current channels when user selects a circuit type. Parameter thresholds are automatically set based on the line voltage and current values that the user enters. Threshold limits for capturing events are also set according to the monitoring mode selected.
• Advanced setup options and intervals that wer e prev iou sly se t up thr ough Aut omatic o r Wizard setups. Under advanced setup, each channel must be turned on individually, but any combination can be used. Threshold limits can be set to any value within the acceptable range. The user can turn on any availabl e parameter. Users have wider control over all setup functions when using advanced setup options.
automatically configures the instrument’s circuit type, voltage and
takes the user through a series of screens prompting for information
(see Chapter 6) allow the user to modify trigger parameters
Selection of setup method typi cally depend on user applicatio n and extent of famil iarity with the operation of the intrument.
Monitor same circuit setups has been previously saved to the card, you may load it using the menu below.
Load setup template from card to load a previously saved data file from the card, use the menu below.
Load data from card
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makes use of the existing setup for monitoring. If a template of
enables you to use previously saved setups. If you wish
allows you to transfer saved events from data card to PX5.
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Overview, continued
Displaying Start Menu
Follow these steps to dis play the Start Men u.
Action... Result...
STEP 1: Press the PX5 On/Off power button to turn the unit on. The Home screen will be displayed.
MARK001b
STEP 2: Press Start/Setup. The Start Menu will be displayed.
MARK100
In this chapter
This chapter is divided into five sections:
Section Title See Page
A Automatic Setup 5-3 B Wizard Setup 5-6 C Monitor Same Circuit 5-24 D Load Setup Template from Card 5-34 E Load Data from Card 5-35
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Overview
CH 5/ Start Menu
Section A
Automatic Setup
Automatic Setup procedure
Automatic Setup is a one-stop process using pre-defined values to set the unit automatically. Users have the option to view the summary list of parameter settings, change probe types if current will be monitored, and/or proceed directly with data monitoring. Follow these steps to perform Automatic Setup.
Action... Result...
STEP 1: From the Start Menu, press Automatic Setup. The auto­configured circuit type, nominal voltage, current and frequency values appear on screen. Data card status and available space in card are also displayed.
• To continue Automatic Setup and begin data monitoring, press OK. Proceed to Step 2.
• To view the list of parameter settings for Automatic Setup, press Summary. Proceed to Step 3 on page 5-4.
• To display/change probe types for current monitoring, press Probe. Proceed to Step 4 on page 5-4.
MARK101a
•Press Cancel to quit and return to Start Menu.
STEP 2: The Monitoring Menu screen allows users to begin monitori ng immediately or at a specified time and date.
• T o star t monitoring, pr ess Start
Now!
Proceed to Section C Monitor Same Circu it - Turning Monitoring On/Off on page 5-24.
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Overview, continued
Automatic Setup procedure (continued)
Action... Result...
STEP 3: Summary displays the list of parameter settings for Automatic Setup. The setup summary is available for review before, during and after monitoring.
•Press Up/Down arrow keys to scroll the page up or down by one line.
• Press and drag the scroll bar to move the page up or down.
• When done reviewing the Setup Summary, press Exit. The screen will return to Auto­Config.
STEP 4: Various probe types are available for each channel for current monitoring.
MARK123c
•Press Change to display the probe types available for each channel. Proceed to Step 5 on page 5-5.
• If using identic al probe type for all Channels, press to enable Set Identical. The display will change to show only one probe selection for all c hannel s. Press Change to display the probe types available. Procee d to Step 5 on page 5-5.
•Press OK to accept probe selection and return to Auto­config screen.
•Press Cancel to disregard probe selection and return to Auto-config screen.
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Automatic Setup procedure (continued)
CH 5/ Start Menu
Action... Result...
STEP 5: Select your desired probe type.
NOTE: Use the same probes for the following: TR2500 for TR2500A, TR2510 for TR2510A, TR2520 for TR2520A.
• If the curre nt probe that you are using is not on the list, select Other. Then press Scale to define the CT scale factor on the current probe. Proceed to Step 6.
MARK104
•Press OK to accept probe selection and monitor current.
•Press Cancel to retain previous probe settings and return to previous screen.
STEP 6: You need to set the CT scale factor when using a current probe that is not on the list. Pressing Scale will show the numeric window to enter the CT scale factor on the current probe. Use the keypad to set the CT scale factor. See sample scale factor calculation on page 5-10.
•Press OK to accept the CT scale factor value. The C urrent Probe Selection screen will be displayed.
•Press ... .... if you want to clear
and retype numeric values.
•Press x1000 to multiply the value by 1000.
MARK104b
•Press Cancel to discard changes and return to the previous screen (screen shown on Step 5).
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Overview
Overview
Section B
Wizard Setup
Introduction
Monitoring modes
Wizard Setup guides the user through the circuit setup step-by-step, via a series of screens prompting for information about the circuit to be monitored. The unit automatically turns on the correct channels, sets the parameter thresholds and waveform capture sett ing s depending on the detecte d ci rc uit type, nominal voltage and current values, and monitoring mode specified by the user.
PX5 allows users to monitor events in the following setup categories: Standard Power Quality , Current Inrush, Fault Reco rder , Long-term T ime d Recording, Contin uous Data Logging, and EN50160 Power Quality mode. Selecting any setup category automatically sets trigger and capture conditions. Advanced users are free to mix and match settings (see Chapter 6 Advanced Setup Options).
Standard Po wer Quality, Demand, Energy existing rms and waveform conditions to optimize setups to reliably capture data. This feature ensures that the first-time user gets the expected results, while providing the experienced user with t he abi lity to t weak sett ings f or sp ecifi c applic ation s. Eit her way, the necessary data used to identify critical events and optimize mitigation solutions is recorded into the data card as it occurs.
Current Inrush such as impedance changes during motor energization or the I is key to preventative maintenance and enhanced power system performance. Inrush­type events such as motor start-up typically requires extended duration cycle-by-cycle recording. With PX5, users can capture and store detailed data to evaluate system performance against specifications and previous benchmark data. Under the current inrush mode, triggers are current-based. By operating in the inrush mode, the instrument will capture and store highly detailed data to a Compact Flash data card in real time, then rearm and be ready to capture data during the next test run.
: Determining system characteristics during current inrush conditions
: PX5 algorithms automatically evaluate
2
t curve of a b reaker trip
Fault Recorder break in the line, a crossing or shorting of the wires, etc. A digital fault recorder logs extended duration cycle- by-cycle reco rding. Under the f ault recorder mode, triggers ar e voltage-based. PX5 can hel p locat e fail ures de tecte d in various component s of asso rted equipment by recordi ng a n extended period of cycle-by-cycle dat a to capture the enti re duration of the fault and the associated system response.
5-6
: A fault in a wire circuit is usually due to unintentional grounding, a
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CH 5/ Start Menu
Monitoring modes (continued)
In this sect ion
Long-term Timed Recording, Demand, Energy
: Performing a statistically valid power quality energ y survey re quires the capture o f a set of b asic da ta over an extended pe riod of time. PX5 is designed to facilitate long-term monitoring by collecting min/max/avg data at each predetermined interval in order to perform post-process harmonic and other events analysis. PX5 is also designed to be left unattended in the field, recording statistically rep resentativ e data for l ong-term anal ysis. Usin g the Dranetz- BMI lockable portable case option or other available enclosures, power quality studies can be carried out in harsh weather environments.
Continuous Data Logging, Demand, Energy
: This logs the rms and power values once per second for totally gapless logging. Cyclic triggers are disabled. No waveforms are recorded under this monitoring mode.
EN50160 Power Quality
: EN50160 monitors and reports Quality of Supply (QOS) compliance as specified by the EN standard. The seven parameters required by EN50160 to determine QOS compliance are: Power Frequency, Supply Voltage Variations, Rapid Voltage Changes, Supply Voltage Unbalance, Harmonic Voltage, Interharmonic Voltage, and Mains Signalling. A full discussion on EN50160 is found on Chapter 8 Reports.
The following topics are covered in this section.
Topic See Page
Current Probe Selection 5-8 Scale Factor Setup 5-10 Circuit Type Selection 5-12 Nominal Values 5-14 Mode of Operation 5-1 7 Monitoring Mode 5-18 Advanced Options 5-19 Site Name/Memory Card 5- 20
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Current Probe Selection
Current Probe Selection
Selecting current probe
Follow these steps to monitor current and select probe type.
Action... Result...
STEP 1: From the Start Menu, press Setup new circuit.
• If current will not be
monitored, press Next. Go to page 5-10.
• If current will be monitored,
press Change to display the probe types available for each channel. Proceed to Step 2.
• If using identic al probe type for all Channels, press to enable Set Identical. The display will change to show only one probe selection. Press Change to display the probe types available. Proceed to Step 2.
• If you want to enable/disable current channels, press to select/deselect Enable Currents.
MARK101
5-8
•Press Cancel to quit and return to Start menu.
STEP 2: Select your desired probe type.
NOTE: Use the same probes for the following: TR2500 for TR2500A, TR2510 for TR2510A, TR2520 for TR2520A.
• If the curre nt probe that you are using is not on the list, select Other. Then press Scale to define the CT scale factor on the current probe. Proceed to Step 3 on page 5-9.
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CH 5/ Start Menu
Selecting current probe (continued)
Action... Result...
STEP 2: (continued)
•Press OK to accept probe selection and monitor current.
•Press Cancel to retain previous probe settings and return to previous screen.
STEP 3: You need to set the CT scale factor when using a current probe that is not on the list. Pressing Scale will show the numeric window to enter the CT scale factor on the current probe. Use the keypad to set the CT scale factor. See sample scale factor calculation on page 5-10.
•Press OK to accept the CT scale factor value. The screen shown in Step 2 will be displayed.
MARK104b
Other relevant information on current probes
•Press ... .... if you want to clear
and retype numeric values.
•Press x1000 to multiply the value by 1000.
•Press Cancel to discard changes and return to the previous screen (screen shown on Step 2).
Refer to Chapter 2 Voltage Measurement Cable and Current Probe Connections for illustrations of typical current probes and for guidelines on how to connect current probes.
Refer to Appendix A for descriptions and part numbers of probes and adapter cables.
Refer to Appendix B for Dranetz-BMI current probes technical specifications.
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Scale Factor Setup
Scale Factor Setup
What is a scale factor?
When to use
Non-Dranetz equipment
Sample calculation
A scale factor is the ra tio of the i nput to outp ut for a pa rticula r current transfor mer (CT) or potential transformer (PT). A scale factor is entered in PX5 and then multiplied automatically by the measure d voltage or curr ent so t he uni t displ ays the c orrect values , as referenced to the primary side, rather than the secondary side of the PT or CT.
NOTE: If voltage and current connections are made without using any of the above named devices, the scale factor should be set to 1.
Scale factors must be entered for the following conditions:
• A Dranetz-BMI current probe is connected to a permanently installed CT.
• The current connections are made using a Dranetz-BMI ISO box.
• The voltage connections are made using a PT.
Refer to the CT name plate or to the manu facturer’s literature to determin e the scale factor.
The scale factor for a single CT or PT is calculated from its step-up or step-down ratio.
Example of step-down ratio If a current transformer has a step-down ratio of 1000A:5A, therefore:
Scale Factor = 1000/5 = 200
Example of step-up ratio If a potential transformer has a step-up ratio of 1V:10V, therefore:
Scale Factor = 1/10 = 0.1
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CH 5/ Start Menu
Scale factor setup screen
After setting up current probe configurations, the Scale Factor screen is displayed.
Action... Result...
STEP 1: From the Current Probe Selection screen, press Next to display the Scale Factor Setup.
• If voltage and current connections are made without using any current or potential transformer devices, the scale factor is set to th e defaul t value of 1. Press Next and go to page 5-11.
• To enter new scale factors, press the numeric field of the Volts/Amps channel where you want to enter new scale fa ctors. Proceed to Step 2.
•Press Cancel to quit and return to Start menu.
MARK105
STEP 2: Enter a new scale factor value using the numeric keypad. Press OK to accept the new scale factor.
•Press .. . . .. to clear and retype
numeric values.
•Press x1000 to multiply the value by 1000.
•Press Cancel to discard changes and retain previous scale factor value, an d retur n to Scale Factor Setup screen.
MARK105b
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Circuit Type Selection
Circuit Type Selection
Circuit setup
PX5 is able to display wiring diagrams from which users can select the circuit type appropriate to their application. The instrument will display the detected circuit configuration and compare the detected voltages, currents, and phase sequence (if applicable) to the selected circuit type. Refer to Appendix E for the descriptions of common circuit connections.
Action... Result...
STEP 1: From the Scale Factor Setup screen, press Next to display Circuit Type Selection. Read the Warning advisory, then press Accept to display the menus for circuit selection.
• To select a circuit configuration, press the Ckt arrow keys until the desired configuration is displayed.
An auto circuit detection window is displayed to show if selected circuit tpe and the detected voltages, currents, and phase sequence match (text in green) or do not match (text in red).
MARK107
5-12
When done with Circuit setup, press Next. Go to page 5-14.
• Real-time Scope and Phasor screens are available. These functions help verify if the wiring configuration match es the circuit being monitored.
Press Scope to check if the waveforms look correct for the specified wiring setup. Pr oceed to Step 2 on page 5-13. Press Phasor to view if phasor display match those expected from the specified wiring diagram. Proceed to Step 3 on page 5-13.
•Press Cancel to discard changes and return to Start menu.
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Circuit Setup (continued)
Action... Result...
STEP 2: Scope mode allows users to verify if waveforms look correct for the specified wiring setup.
• To check input range, press CkRng. The Input Range screen displays the detected range for vol tage and current channels A, B, C, and D.
• The instrument registers a message on the Input Range screen that corresponds to the detected input range for each channel:
CH 5/ Start Menu
MARK201
Input Range OK OVER UNDER N/A CLIP
Description Within Ran ge Over Range Under Range Channel Disabled Clipping
• When done checking the input range, press OK to return to the Scope mode screen. Once in Scope mode screen, press Exit to return to Circuit Type Selection screen.
STEP 3: Phasor displa y shows a graph that indicates phase relations between voltage and current.
For more information on phasors, refer to Chapter 3 View Real Time Data - Sectio n D Voltage and Current Phasor.
MARK205
•Press Demo to show animated phasor rotations.
•Press Exit to return to Circuit Type Selection screen.
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Nominal Values
Nominal Values
Frequency, voltage and current settings
The Nominal Values screen allows users to enter values for frequency nominal line voltage and current, or use the computed nominal values displayed on screen.
Action... Result...
STEP 1: Nominal Va lues screen appears as users prepare the instrument to record data. From the Circuit T ype Selection screen, press Next to display Nominal Values.
• If the computed nomi nal values are acceptable without change, press Next. Go to page 5-17.
• To enter a new nominal Frequency, Voltage and/or Current value, press the corresponding field and proceed to Step 2.
• To set the properties to track frequency of a monitored system, press Tracking. Proceed to Ste p 3 on pa ge 5- 15.
NOTE: Make sure that the nominal values computed by PX5 are correct. Nominal values are used as basis for setting default thresholds and other parameters for circuit monito ring.
MARK110
•Press Cancel to quit and return to Start menu.
STEP 2: Enter a new nominal Frequency/Voltage/Current value using the numeric keypad. Press OK to accept the new value.
•Press ... .. . to clear and retype
numeric values.
•Press x1000 to multiply the value by 1000.
•Press Cancel to retain previous nominal values and return to Nominal Values screen.
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Frequency, voltage and current settings (continued)
Action... Result...
STEP 3: Tracking allows users to set parameters to monit or changes in frequency.
Voltage C lass: Check to select the power system that define the voltage range of distribution of the monitored system.
• Standard voltage range is 16- 440 Hz.
• Fast voltage range is 16-65 Hz.
• Internal uses the nominal frequency when making measurements where no reference signal is available. NOTE: Always enter a nominal frequency that matches your line frequency. This ensures that if the PX5 loses external sync, it will have a corresponding internal sync.
CH 5/ Start Menu
MARK110c
Sync Channel: Check to specify t he external sy nc mode to show which channel the signal is connect ed to . See pa ge 5­16 for more details on frequency synchronization.
• Ch A Volts: When set to Ch A, PX5 attempts to sync to an incoming voltage signal.
• Ch D Volts: When set to Ch D, PX5 only a ttempts to sync to voltage Ch D.
Tracking Range: The Min and Max refer to the range of frequencies that the phase locked loop will “hunt” if sync is lost. See page 5-16 for more details on frequency tracking.
•Press OK to accept new frequency tracking setti ngs .
•Press Cancel to quit and return to Nominal Values screen.
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Nominal V a lues, continued
Frequency synchronization
Frequency tracking
Normal frequency synchronization (sync) of PX5 analog signal processing circuits is controlled by analyzing the external AC voltage signal input on channel A. Loss of external sync causes the PX5 to poll other valid voltage channels (A, B, or C) for an alternate external sync. If none exists, then internal sync is automatically selected. The frequency used for internal is entered under Frequency on the Nominal Values screen (see page 5-14).
Depending on the type of circuit configuration, the instrument will attempt to autosearch to sync to any valid voltage channel. The autosearch function will be disabled when users spe cify sync mode Ch D Volts . Typically, external sync on Ch D is specified if it is known that signals on A, B or C are inappropriate for use as a sync source (i.e. the frequency is unstable or DC). A low distortion 50, 60 or 400 Hz signal can be input to Ch D and used as a sync signal.
NOTE: Failure to connect an external sync or to select an internal sync during current monitoring will result in erroneous data being collected and displayed.
Tracking determines how the phase locked loop circuitry responds to sudden changes in frequency.
Standard mode
: On a normal power quality application [Standard], the system is designed to “ride thr ough” volta ge changes to keep tracki ng the funda mental fre quency even in the absence of voltage.
Fast mode
: When operating on a loca l genera tor [Fast ], th e freque ncy wi ll v ary more as loading changes occur. The Fast mode allows the instrument to follow these changes more closely.
Internal mode
: In cases where no r eference si gnal is ava ilable ( such as DC monit oring),
the Internal setting is used to set the sample rate.
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